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ZDI-26-674: Adobe Acrobat Reader DC Annotation Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI disclosed CVE-2026-81981, an out-of-bounds write in Adobe Acrobat Reader DC annotation handling that permits remote code execution.

Zero Day Initiative advisory ZDI-26-674 details an out-of-bounds write in the annotation handling of Adobe Acrobat Reader DC. Successful exploitation allows arbitrary code execution after the victim opens a malicious file or visits a malicious page. The advisory carries a CVSS score of 7.8. No exploitation is reported.

ZDI Published Advisories · 6d agoVulnerability 19 sourcesCVE-2026-81981

Phishing Attacks Abuse Trusted Email Infrastructure and URL Cloaking to Evade Security Filters

VBSpam Q3 2026 test shows phishers abusing DKIM-aligned domains, Amazon SES, and multi-stage URL cloaking to defeat email filters.

Virus Bulletin's Q3 2026 VBSpam test (AMTSO-LS1-TP207) found phishing campaigns moving payloads past the email itself via browser-fingerprinting gates, redirect chains, and hidden POST requests. Examples include a Dutch McAfee/TotalAV scareware renewal scam, a German overdue-payment Web3 fraud delivered via Amazon SES from DKIM-aligned moolaah.com, and Romanian BCR PSD2 credential phishing embedding IPv6-mapped URLs resolving to 103.193.179.223. Net at Work NoSpamProxy ranked first with a 99.995 score while open-source Rspamd caught only 62.55% of phishing mail.

GBHackers · 1d agoPhishing & fraud in the wild 2 sources

Chaotic Eclipse Released GreenSection, A PoC For NVIDIA Memory Corruption Zero-Day

Researcher Chaotic Eclipse released GreenSection, a PoC exploiting an unpatched out-of-bounds write in NVIDIA Windows user-mode shared memory.

Security researcher Chaotic Eclipse disclosed an out-of-bounds write in NVIDIA's Windows user-mode components, which share a global memory section (\BaseNamedObjects\{52813408-3561-4705-820a-2b3b78be92ba}) with full read/write access to all users. The PoC crashes applications running Vulkan or OpenGL; the researcher says the bug could cross user boundaries or compromise dwm.exe but did not fully assess the impact. No CVE has been assigned and no patch is mentioned. The researcher recently released zero-day PoCs against Kaspersky, Avast, and CrowdStrike Falcon.

Security Affairs · 9d agoExploit / PoC 2 sources

Malicious MCP Servers Can Split Instructions to Make AI Coding Agents Exfiltrate Secrets

ASSET Research Group's GhostSplice technique splits malicious instructions across MCP channels, tricking AI coding agents into exfiltrating SSH keys, source code, and secrets.

ASSET Research Group disclosed GhostSplice, a prompt-injection technique in which a malicious Model Context Protocol (MCP) server splits an exfiltration instruction across a tool description and a tool result so no single fragment appears harmful. In the reference implementation, a benign-looking integrity_checker tool with fields alpha through delta is later paired with a project-scan result mapping those fields to .ssh/id_rsa, proprietary source, customers.csv, and .env. Tests across eleven API-tested models showed average compliance rising from 42% to 82% when instructions were split in two, with GPT-4o, Gemini 2.0 Flash, and Llama 3.3 70B going from 0% to 100%. The findings come from controlled lab tests, not a reported real-world intrusion, and no CVE identifiers had been assigned as of August 10, 2026.

The Hacker News · Aug 11, 2026AI safety & security1

Large Enterprises Targeted in Fake Merger & Acquisition Scams

'Phantom Deal' campaign uses detailed research on large enterprises to trick midlevel employees into initiating large fraudulent merger-related financial transfers.

Dark Reading reports on the 'Phantom Deal' campaign, in which threat actors study target companies in extreme detail before running fake merger and acquisition scams against large enterprises. The social engineering aims to dupe midlevel employees into initiating large financial transfers. The scheme follows a business email compromise-style fraud pattern targeting enterprise finance workflows.

Dark Reading · 12d agoPhishing & fraud

⚡ Weekly Recap: VMware Exploits, Windows 0-Day, MCP Attacks, Browser Hijacks and More

Weekly recap: suspected China-nexus APT exploited VMware vCenter CVE-2026-59310, Lazarus used Windows zero-day CVE-2026-68820, and macOS flaw dropped Monero miners.

The week's top stories included a suspected China-nexus APT exploiting VMware vCenter CVE-2026-59310 (CVSS 9.8), a directory-traversal flaw enabling arbitrary code execution, with backdoors, reverse SSH and Babuk-derived ransomware deployed, per QUIRSO. NCSC-NL reported active exploitation of macOS Screen Sharing flaw CVE-2026-65400 (CVSS 9.8) to install Monero miners on systems with port 5900 exposed. Lazarus Group exploited Windows zero-day CVE-2026-68820 (CVSS 7.0) in Operation Dream Job, delivering ForestTiger and Troy backdoors to defense and aerospace targets. GeoServer patched a critical SQL injection flaw exploited within hours of disclosure, and Jamf analyzed the new Amnesia Stealer for macOS with live browser control.

The Hacker News · Aug 17, 2026Exploit / PoC in the wildCVE-2026-59310CVE-2026-65400CVE-2026-688201

[webapps] Ghost_CMS 6.19.0 - Remote Code Execution

A public proof-of-concept demonstrates remote code execution in Ghost CMS 6.19.0, the widely deployed open-source publishing platform.

Exploit-DB lists a remote code execution proof of concept affecting Ghost CMS version 6.19.0. Ghost is a popular open-source platform used by publishers and blogs worldwide. The listing does not cite a CVE id or report in-the-wild exploitation.

Exploit-DB · 14d agoExploit / PoC1

GhostCode Phishing Kit Bypasses Microsoft 365 MFA to Hijack Accounts in 78 Seconds

eSentire identified GhostCode, a phishing kit abusing Microsoft 365 OAuth device-code sign-in to steal tokens and take over accounts in seconds.

eSentire analysts identified GhostCode in late August, a phishing kit that uses business contact-form messages and an NDA pretext to deliver a password-protected HTML attachment leading victims to a Microsoft device-code sign-in. Victims authenticate on legitimate Microsoft pages, letting the kit obtain a Primary Refresh Token in 32 seconds and register three devices in 78 seconds, with residential proxies matching the victim's location. The kit hides its redirect with encrypted addresses, junk data, and scanner-filtering challenges, and uses GHOSTnet-linked infrastructure during device enrolment. eSentire recommends blocking device-code authentication via Conditional Access, invalidating tokens, and reviewing newly enrolled devices.

Cyber Security News · 5h agoPhishing & fraud in the wild 9 sources

Post-DEF CON Phishing Uses Malicious Google Doc to Deliver Malware

Huntress uncovered post-DEF CON phishing via X direct messages using a malicious Google Doc to deliver AMOS and NetSupport RAT malware.

Huntress uncovered a phishing campaign targeting attendees after Black Hat and DEF CON. Attackers used X direct messages pointing to a malicious Google Doc as the delivery vehicle. Payloads include AMOS, a macOS infostealer, and the NetSupport RAT, among other malware.

Huntress · 28d agoPhishing & fraud

Fake Voicemail SVG Attachments Fuel Large-Scale Phishing Campaign

Large-scale phishing campaign used fake voicemail SVG attachments to evade email defenses, targeting 5,527 organizations with 26,000+ messages.

A large-scale phishing campaign distributed fake voicemail notifications as SVG attachments, a format that helps bypass many email security controls. The campaign targeted 5,527 organizations with more than 26,000 malicious messages, apparently aiming to lure recipients into credential-harvesting actions.

Infosecurity Magazine · 19d agoPhishing & fraud

Phishing Campaign Sends Millions of Emails Using Invisible Unicode to Evade Filters

Microsoft warns of a high-volume phishing campaign using invisible Unicode characters to split keywords like 'funding' and evade filters, peaking at 2.37 million daily messages.

Microsoft's Security Research team documented a high-volume phishing operation inserting deprecated Unicode Tags characters (U+E0000-U+E007F) inside financial keywords such as 'funding' so literal-string and regex email filters stop matching them. The campaign ran on a weekly cadence with 1-2.37 million weekday messages between February and May 15, 2026, peaking on February 26, 2026. It used hundreds of disposable finance-themed sender domains and relayed mail through ActiveCampaign's click-tracking infrastructure (acemlnd[.]com, activehosted[.]com), lending legitimate platform reputation. Microsoft ties the activity to an AI-assisted SBA loan phishing campaign that Fortra's FIRE team disclosed in September 2025.

The Hacker News · 12d agoPhishing & fraud in the wild

A $25 template helped scammers build hundreds of phantom bank domains

Allure Security researchers found 838 live phantom bank sites sharing a $25 template, built to lend credibility to investment and romance scams.

Allure Security researchers discovered roughly 2,200 domains presenting invented banks, of which 1,095 returned working pages and 838 contained a shared phrase. 97% of those retained parts of the $25 Cuex front-end template and 94% ran Laravel, with a misspelled 'Curreny Charts' heading on 90% of sites. The sites presented login pages, session cookies, and anti-forgery tokens consistent with a fraud model where scam contacts direct victims to fake financial portals. A leftover 'Remedy bank' title and form submission to remedycodes[.]site linked some sites to already-flagged fraud infrastructure.

Help Net Security · 26d agoPhishing & fraud

ZDI-26-613: (0Day) pdfforge PDF Architect PDF File Parsing Memory Corruption Remote Code Execution Vulnerability

ZDI published ZDI-26-613, an unpatched memory corruption flaw in pdfforge PDF Architect PDF parsing enabling remote code execution (CVSS 7.8).

The Zero Day Initiative disclosed ZDI-26-613, a memory corruption vulnerability in pdfforge PDF Architect's PDF file parsing that allows remote code execution on affected installations. User interaction is required, meaning the target must visit a malicious page or open a malicious file. ZDI assigned a CVSS score of 7.8 and classifies the issue as a 0day.

ZDI Published Advisories · 16d agoAdvisory

Outsider Phishing Kit Survives Takedown With 700 New Pages

Group-IB found the Outsider phishing kit kept generating 700+ new phishing pages within a month of Operation Ghost Hook's takedown.

Group-IB linked the Outsider Phishing Kit, operated by a threat actor known as ChenLun, to more than 100,000 phishing pages across 54+ countries between December 2025 and May 2026. After the FBI, Google, and Lumen's Black Lotus Labs seized core admin servers, a Shopify storefront, about $100,000, and thousands of domains under Operation Ghost Hook in June, over 700 new phishing domains appeared within a month. The kit offered 267 templates, adversary-in-the-middle MFA interception, WebSocket-based live operator communication, and SMS delivery via a Telegram affiliate ecosystem with more than 5,000 subscribers.

Infosecurity Magazine · 13d agoPhishing & fraud in the wild1

ZDI-26-596: Foxit PDF Reader PDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Foxit PDF Reader out-of-bounds read in PDF parsing (CVE-2026-57253, CVSS 3.3) can leak sensitive information via malicious files.

ZDI-26-596 covers an out-of-bounds read in Foxit PDF Reader's PDF file parsing, tracked as CVE-2026-57253 and rated CVSS 3.3. Successful exploitation allows remote attackers to disclose sensitive information and requires the target to open a malicious file or page. The advisory was published by the Zero Day Initiative on August 24, 2026.

ZDI Published Advisories · 23d agoAdvisoryCVE-2026-57253

Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure

Unit 42 exposes CL-CRI-1171, a pay-per-install network spreading malware like Insomnia RAT via YouTube channels and SEO poisoning for over two years.

Palo Alto Networks Unit 42 details CL-CRI-1171, a cybercrime cluster operating a pay-per-install (PPI) marketplace that has delivered multiple malware families for at least two years. The group used at least eleven YouTube gaming channels with hundreds of thousands of followers, plus SEO poisoning promoting trojanized software such as a Bluetooth driver and WinDirStat, infecting gamers and corporate endpoints including critical infrastructure and government entities. A single shared loader delivered payloads including Insomnia RAT, ARKTunnel, Docro Hijacker, GCleaner and Socks5Systemz between July 2025 and April 2026, with more than 10,000 distinct loader samples and over 200 rotating C2 domains identified. YouTube terminated the malicious channels after Unit 42 notified the platform.

Palo Alto Unit 42 · 7d agoMalware in the wild1

GhostCode Abuses Microsoft Entra Device Enrollment to Maintain Access After Token Revocation

eSentire exposes GhostCode, a device-code phishing kit that abuses Microsoft Entra device enrollment to persist even after stolen tokens are revoked.

eSentire's Threat Response Unit observed GhostCode campaigns in late August 2026, using BEC-style social engineering that impersonated procurement staff, including BJ's Wholesale Club, via Salesforce contact forms. Victims received password-protected HTML lures disguised as a FlipBook document portal, with junk-data padding, HTML comment injection, and AES-256-GCM encrypted redirects gated by anti-bot checks. The kit exploits the OAuth 2.0 device authorization grant, prompting victims to approve real Microsoft device-code sign-ins with MFA. Within 78 seconds of approval, attackers registered three Entra devices and obtained a Primary Refresh Token, so rogue device registrations persist even after session token revocation.

GBHackers · 6h agoPhishing & fraud in the wild

ApateWeb: An Evasive Large-Scale Scareware and PUP Delivery Campaign

Unit 42 uncovers ApateWeb, a campaign using over 130,000 domains and multilayered redirects to deliver scareware, adware and PUPs to millions of users.

Unit 42 discovered ApateWeb, a large-scale campaign using a network of more than 130,000 domains to deliver scareware, potentially unwanted programs, adware including a rogue browser and browser extensions, and scam pages. The campaign uses a three-layer structure with deceptive emails as the entry point, centralized victim tracking via UUIDs, intermediate adware or anti-bot redirections, and evasion tactics such as cloaking, bot detection error pages, and wildcard DNS abuse. Activity spiked since August 2022, with several hundred attacker-controlled sites remaining in Tranco's top 1 million rankings and millions of monthly hits; Unit 42 blocked an estimated 3.5 million sessions across 74,711 devices in November 2023.

Palo Alto Unit 42 · Aug 17, 2026Phishing & fraud in the wild

Doubloon Dredger Abuses Notion to Harvest Authentication Tokens

Doubloon Dredger malware abuses Notion and malicious PDFs to steal Microsoft authentication tokens from victims.

Doubloon Dredger is a malware campaign that abuses Notion and malicious PDF files to harvest Microsoft authentication tokens. Using a legitimate collaboration service likely helps the operation blend into trusted SaaS traffic and evade detection. Stolen Microsoft authentication tokens can enable account access without knowing user passwords.

Infosecurity Magazine · 23d agoMalware in the wild1

Malicious LiteLLM Releases Tied to Trivy Hack May Have Exposed 2,100+ Organizations

Malicious LiteLLM 1.82.7/1.82.8 PyPI releases tied to the Trivy TeamPCP campaign harvested cloud, SSH, and database credentials, potentially exposing 2,500+ organizations.

CloudSEK reported that two malicious LiteLLM releases on PyPI (versions 1.82.7 and 1.82.8, live about 40 minutes on March 24) harvested cloud keys, SSH keys, Kubernetes tokens, and database passwords, with captured loot files mapping potential exposure to more than 2,500 organizations including NVIDIA, Cisco, Deloitte, Volkswagen, FedEx, Siemens, and X Corp. The campaign is part of TeamPCP (tracked by Google as UNC6780), linked to the Aqua Security Trivy scanner compromise tracked as CVE-2026-33634 and added to CISA's Known Exploited Vulnerabilities catalog on March 26. The payload used a litellm_init.pth file executed at Python interpreter startup and exfiltrated secrets to models.litellm[.]cloud; the FBI's FLASH-20260702-01 advisory urged rotation of CI/CD, publishing, and cloud credentials.

The Hacker News · Aug 12, 2026Data breach in the wildCVE-2026-33634

My business partner sent a 5K vibe-coded PR that he didn't even test

A developer's business partner shipped a 5,236-line untested vibe-coded payments backend PR whose endpoints failed basic testing.

The author describes reviewing a pull request with 5,236 additions for a payments backend that a business partner generated largely with AI in a single day without testing. The PR's AI-written documentation included redundant boilerplate (e.g., 'returns 400 on error') but omitted operational details like where to obtain API keys, and the endpoints failed when tested. The post is a critical opinion piece on vibe coding and perceived skill atrophy among developers who rely on AI for everything.

Hacker News · security · 8d agoAI industryHN 46↑ · 75 comments1

Hackers Advertise Uncensored Luciferus AI Service on Underground Forums

Sophos CTU found Luciferus, an uncensored criminal AI subscription service on the Exploit forum that returned RAT source code on request.

Sophos Counter Threat Unit discovered Luciferus advertised on August 24, 2026 on the Exploit forum by persona 'Optimus_Prime', claiming a proprietary 120-billion-parameter uncensored model that analysts assess with low confidence may be built on Alibaba's Qwen. Subscriptions run $35-$75 monthly, with a VIP 'Individual Embodiment' tier offering a separately deployed model trained on customer data. In testing, the Junior model generated Python remote-access-trojan source code, though Sophos did not execute or verify it. The service extends the WormGPT/FraudGPT lineage into structured commercialization with tiered pricing resembling mature SaaS businesses.

Cyber Security News · 1d agoAI safety & security

ZDI-26-597: Foxit PDF Reader AcroForm Use-After-Free Remote Code Execution Vulnerability

Foxit PDF Reader has a use-after-free vulnerability (CVE-2026-57252, CVSS 7.8) allowing remote code execution via malicious AcroForm content.

ZDI-26-597 describes a use-after-free vulnerability in the AcroForm feature of Foxit PDF Reader, tracked as CVE-2026-57252 with a CVSS score of 7.8. Successful exploitation allows remote attackers to execute arbitrary code, but requires user interaction such as visiting a malicious page or opening a malicious file. The advisory does not mention any exploitation in the wild.

ZDI Published Advisories · 23d agoVulnerabilityCVE-2026-57252

Cops Search Thousands of Flock Cameras for Reasons of ‘LMAO,’ ‘IDK,’ ‘Hehe,’ and ‘asdfg’

EFF analysis found police searched Flock's 19,000-camera ALPR network using joke reasons like 'LMAO' and 'idk,' exposing routine warrantless surveillance abuse.

An EFF analysis of Flock audit logs, shared with 404 Media, found officers across dozens of jurisdictions searching over 19,000 cameras in 1,558 cities with justifications like 'LMAO,' 'idk,' and keyboard gibberish between 2023 and late 2025. One Lake County, Indiana sheriff's deputy searched for a license plate across the entire network citing 'LMAO.' After outlets exposed searches targeting ICE detainees, an abortion patient, and protesters, officers were reportedly told to be 'as vague as permissible,' and Flock replaced the free-text reason box with a prepopulated drop-down list, which EFF called a loss for transparency. Departments rarely disciplined offending officers, and EFF concluded agencies cannot oversee themselves.

404 Media · 2d agoPolicy & legal

Plug 'n' Pray: Agentic LLM-based Detection of Potential Log File Exposures in Third-Party Content Management System Plugins

Agentic LLM analysis validates 79 log file exposures across 62 of the 300 most-installed WordPress plugins, covering 250M+ active installations.

Researchers built an agentic LLM-based framework combining static and dynamic analysis to automatically detect insecure log files created by WordPress plugins. Scanning the 300 most-installed plugins, which account for roughly 75% of all active installations in the official ecosystem, it produced 81 findings with 79 manually reproduced across 62 plugins. Insufficiently secured log files can disclose credentials and personal data and have led to website compromises. The authors derive a taxonomy of log path and protection patterns and best practices, finding multi-layered protection often absent.

arXiv cs.CR · 1d agoResearch

ZDI-26-612: (0Day) pdfforge PDF Architect PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI published ZDI-26-612, an unpatched out-of-bounds write in pdfforge PDF Architect PDF parsing enabling remote code execution (CVSS 7.8).

The Zero Day Initiative disclosed ZDI-26-612, an out-of-bounds write vulnerability in pdfforge PDF Architect's PDF file parsing. Successful exploitation allows remote code execution on affected installations. User interaction is required, as the target must visit a malicious page or open a malicious file; ZDI assigned a CVSS score of 7.8 and lists the flaw as a 0day.

ZDI Published Advisories · 16d agoAdvisory

VU#943094: ONLYOFFICE ownCloud integration plugin contains a Server-Side Request Forgery (SSRF) vulnerability

ONLYOFFICE's ownCloud integration plugin 9.12 has an SSRF flaw (CVE-2026-84282) letting authenticated admins probe internal networks; no patch exists yet.

CERT/CC published VU#943094 for a server-side request forgery in Ascensio System SIA's ONLYOFFICE ownCloud integration plugin version 9.12, tracked as CVE-2026-84282. The /apps/onlyoffice/ajax/settings/address endpoint does not validate the user-supplied document server URL, so an authenticated administrator can make the ownCloud server send arbitrary requests to localhost and internal hosts. Differences in error responses (connection failures vs SSL/TLS errors) let attackers enumerate open and closed TCP ports for internal reconnaissance. The vendor could not be reached, so no official patch is available; CERT recommends disabling the plugin and applying egress filtering until a fix ships.

CERT/CC Vulnerability Notes · 8d agoVulnerabilityCVE-2026-84282