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Pixel Modem Zero-Day Exploited in Targeted Attacks

Google patched Pixel modem zero-day CVE-2026-58704, a zero-click permission bypass enabling remote privilege escalation, exploited in targeted attacks.

CVE-2026-58704 is a high-severity logic error in the Pixel cellular modem allowing remote (proximal/adjacent) escalation of privilege with no user interaction or additional execution privileges. Google reports limited, targeted exploitation but has not attributed it; the zero-click modem nature suggests commercial spyware or state-sponsored actors. The September Pixel update also fixes more than 100 other Pixel-specific vulnerabilities, nearly 50 of them critical, enabling RCE or privilege escalation.

SecurityWeekupdated · 8h agofirst · 13h agoExploit / PoC in the wild 8 sourcesCVE-2026-58704

UNISOC Modem Flaw Enables Remote Code Execution via Video Calls

A UNISOC modem flaw allows attackers to achieve kernel-level remote code execution through malicious video calls on affected devices.

UNISOC, whose modems are widely deployed in Android smartphones, has a flaw that enables kernel-level code execution triggered via video calls. Successful exploitation would give an attacker deep control over affected handsets. No exploitation activity is mentioned in the report.

Infosecurity Magazine · Aug 17, 2026Vulnerability

Unisoc VoLTE Video Call Exploit Chain Can Give Attackers Full Android Kernel Access

Unisoc modem firmware flaw CWE-1189 allows VoLTE video call RCE chain to gain full Android kernel access on T606/T612/T7250 chipsets; no patch yet.

SSD Secure Disclosure published the second stage of an exploit chain, first disclosed in March 2026, that achieves full Android kernel access on Unisoc modem firmware via a VoLTE video call. The privilege-escalation flaw, classified as CWE-1189 (Improper Isolation of Shared Resources on System-on-a-Chip), exploits shared physical memory between modem and application processor with no hardware boundary, letting modem code map the entire 32-bit address space and modify Android kernel pages via ARM Memory Protection Unit registers. Confirmed affected chipsets include Unisoc T606 (Motorola E13), T612 (Realme C33), and T7250 (Xiaomi Redmi A5), sold across more than 140 countries. No CVE has been assigned, the August 2026 Android Security Bulletin does not address it, and Unisoc has not responded to researchers; exploitation requires an attacker-controlled private 4G network and a victim answering the call.

Fwd: UnrealIRCd 6.2.7 released & hot-patch to fix security issues for existing installations

Clarification: UnrealIRCd Websockets and JSON-RPC interfaces involved in 6.2.7 security fixes are disabled by default.

Sam James forwards the UnrealIRCd 6.2.7 release announcement and clarifies that neither Websockets nor JSON-RPC are enabled by default. This limits exposure of the security issues addressed by the release and accompanying hot-patch for existing installations.

oss-security · 4d agoVulnerability 2 sources

⚡ Weekly Recap: AI-Powered PLC Attacks, GitLab Attacks, Stripe Key Leaks and More

US agencies warn of AI-assisted attacks on exposed Siemens PLCs; the week also saw GitLab CVE-2026-19478 exploited and trojanized npm packages found.

The weekly recap leads with a US government warning that threat actors use AI-generated scripts and Censys/ZoomEye scanning to attack internet-exposed Siemens S7 PLCs in water, energy and manufacturing, calling it an active threat. Other stories include active exploitation of GitLab CVE-2026-19478 (CVSS 9.4, unauthenticated project rewriting), 14 trojanized npm packages delivering the RedC2 4.0 Linux backdoor, and the Zombie Card attack that revives expired Visa cards for contactless payment fraud. It also covers suspected Russian clusters UNC6293, UNC7005 and UNC5976 phishing campaigns, a faster Cloudflare Workers Spectre JWT leak, and a bespoke Cl0p JSP web shell deployed after exploiting PTC Windchill flaws.

The Hacker News · 19d agoThreat actor in the wildCVE-2026-194781

Android Security Update September 2026 – Fix for Critical Flaws that Enable RCE Attacks

Google's September 2026 Android bulletin fixes over 30 critical flaws, including no-interaction system RCEs, a TIPC kernel RCE and a Qualcomm closed-source bug

Google's Android Security Bulletin for September 2026 (patch levels 2026-09-01 and 2026-09-05) fixes numerous critical System remote code execution flaws, including CVE-2026-28604, CVE-2026-28618, CVE-2026-28639, CVE-2026-28662, CVE-2026-49882, CVE-2026-49884, CVE-2026-49919 and CVE-2026-49921, none requiring user interaction or additional privileges. It also addresses critical kernel issues including a TIPC RCE (CVE-2026-52993) and elevation-of-privilege flaws in NFC and protected KVM, plus a critical Qualcomm closed-source component flaw (CVE-2026-25289). Affected versions span Android 14 through 17; the 2026-09-05 patch level extends coverage to Android TV and chipset components, with high-severity fixes for Arm Mali, PowerVR, MediaTek, Unisoc and Qualcomm components.

[webapps] Linksys E1200_2.0.04 - Unauthenticated OS Command Injection

A proof-of-concept for unauthenticated OS command injection in Linksys E1200 router firmware 2.0.04 has been published on Exploit-DB.

Exploit-DB entry 52660 discloses an unauthenticated OS command injection affecting the Linksys E1200 wireless router running firmware version 2.0.04. The flaw is categorized as a web application vulnerability. No CVE identifier or evidence of in-the-wild exploitation is provided in the listing.

Exploit-DB · 17d agoExploit / PoC

Cisco Secure Firewall Management Center Software Authentication Bypass Vulnerability

Cisco warns of a critical authentication bypass in Secure Firewall Management Center that lets unauthenticated attackers execute scripts and obtain root access.

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software allows an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. The flaw stems from an improper system process created at boot time and is triggered via crafted HTTP requests. If the FMC management interface does not have public internet access, the attack surface is limited.

Ubiquiti security advisory (AV26-850)

Canada's Cyber Centre reports critical vulnerabilities across Ubiquiti UniFi products including UniFi OS Server, Network, Protect, and Access; updates required.

The Canadian Centre for Cyber Security (AV26-850) reports critical vulnerabilities affecting numerous Ubiquiti products, including UniFi OS Server (<=5.1.21), UniFi Network Application (<=10.4.57), UniFi Protect Application (<=7.1.87), and UniFi Access Application (<=4.3.3). Other affected products include UniFi Connect, UID Enterprise Agent, UniFi Talk, UniFi Protect AI Key, Connect Display Cast Pro, and Enterprise Audio/Video Bridge. Administrators should update affected applications and devices; the advisory lists no CVE ids or exploitation details.

Canadian Centre for Cyber Security · 21d agoAdvisory

Cisco UCS and UCS-Based Appliances UEFI Shell Secure Boot Bypass Vulnerability

Cisco disclosed a UEFI Secure Boot bypass in UCS servers and UCS-based appliances letting authenticated or physically present attackers execute unauthorized software.

Cisco published an advisory for a vulnerability in the UEFI Shell implementation of UCS servers and UCS-based appliances. Memory write commands remain available in the UEFI Shell while Secure Boot is enabled, allowing an attacker to modify UEFI memory and bypass validation checks to run unauthorized software. Exploitation requires either valid credentials for a user or admin account, or unauthenticated physical access to select the UEFI Shell boot option at boot time. The issue affects firmware boot integrity rather than the running operating system.

Cisco Security Advisories · 8d agoAdvisory

Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Denial of Service Vulnerability

Cisco warns of a DoS flaw in SIP software on Desk Phone 9800 and IP Phone 7800/8800 series from improper HTTP packet memory handling.

Cisco disclosed a denial of service vulnerability affecting Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 devices running Cisco SIP Software. An unauthenticated remote attacker can send a continuous stream of crafted HTTP packets, causing sustained memory consumption until the device becomes unresponsive. A manual reboot is required to recover an affected device. No CVE identifier was listed in the advisory text.

Cisco Security Advisories · 14d agoAdvisory

CVE-2026-34908: UniFi OS Auth Bypass Vulnerability

Ubiquiti disclosed CVE-2026-34908, a CVSS 10.0 authentication bypass in UniFi OS letting network-adjacent attackers alter device configuration without credentials.

CVE-2026-34908 is an improper access control flaw (CWE-284) in Ubiquiti UniFi OS devices, disclosed in UI Security Advisory Bulletin 064, with a CVSS 3.1 base score of 10.0. An unauthenticated network-adjacent attacker can bypass access controls and modify system configuration, with scope-changed impact on downstream network services such as routing, VPN, and connected access points. Fixed firmware is available, and workarounds include restricting management ports to trusted subnets, isolating management interfaces on a dedicated VLAN, and disabling remote access features. No public proof-of-concept code was observed at the time of publication.

VU#756733: Calix GS7 XGS GS5239XG residential router contains missing authentication vulnerability

CERT/CC warns Calix GS7 XGS GS5239XG routers on firmware EXOS/6.6.47 expose an unauthenticated UPnP WANIPConnection service on the public WAN interface.

CERT/CC issued VU#756733 for a missing authentication vulnerability in the Calix GS7 XGS GS5239XG residential gateway running EXOS/6.6.47. The device's UPnP service, implemented with MiniUPnPd 2.3.7, is exposed on the WAN interface by default and does not require authentication, potentially letting remote attackers alter port mappings through the WANIPConnection service. The flaw affects routing, NAT, and firewall functionality for home networks.

CERT/CC Vulnerability Notes · 26d agoVulnerability

Citrix UniconOS dual boot turns Windows endpoints into their own recovery device

Citrix released UniconOS dual boot in Release 7 2607, turning Windows endpoints into self-recovery devices after ransomware, failed updates or OS corruption.

Citrix announced dual boot in UniconOS Release 7 2607, which installs an isolated, hardened recovery environment alongside Windows in a separate partition protected by secure boot. If Windows is unavailable, users reboot into UniconOS and reconnect to applications via Citrix DaaS and SecurAccess with Chrome Enterprise. The capability is aimed at reducing reliance on spare hardware and central reimaging during ransomware or update failures, with automatic enrollment in UniconOS Management for fleet-wide boot policies.

Help Net Security · 23d agoTools

Cisco Secure Firewall Management Center Software Static Credential Vulnerability

Cisco warns of static low-privileged credentials in Secure Firewall Management Center's web interface, letting unauthenticated remote attackers log in and access sensitive data.

Cisco disclosed a vulnerability in the web interface of Secure Firewall Management Center (FMC) Software caused by the presence of static credentials for a low-privileged account. An unauthenticated remote attacker could log in to an affected device using the static account and access sensitive data within impacted systems. The attack surface is reduced when the FMC management interface does not have public internet access.

Cisco Security Advisories · Aug 11, 2026Advisory

Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Vulnerabilities

Cisco fixed sftunnel flaws in Secure Firewall Management Center and Threat Defense allowing unauthenticated authentication bypass or denial of service.

Multiple vulnerabilities in Cisco Secure Firewall Management Center (FMC) and Secure Firewall Threat Defense (FTD) software could allow an unauthenticated attacker to bypass sftunnel authentication or mount a sftunnel denial-of-service attack. Cisco has released software updates addressing these vulnerabilities. No workarounds are available. The advisory is part of a grouped Cisco release.

Cisco Security Advisories · 10h agoAdvisory 7 sources

Finding Nemo(Claw): Networking Issue Allows for LLM Poisoning in OpenClaw

A networking flaw in Nvidia tooling lets attackers reach OpenClaw's local model server unauthenticated via the Ollama API, enabling persistent LLM poisoning.

Dark Reading reports that a networking issue in Nvidia's tooling can give attackers unauthenticated access to the local model server through the Ollama API. From there, attackers can poison the model used by the OpenClaw agent, creating persistent corruption of agent behavior. The finding highlights exposed local model servers as a security risk for self-hosted AI agent stacks.

Dark Reading · 22d agoAI safety & security

Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability

Cisco released a fix for a management-plane flooding DoS in IE-1000 switches that can make the device manager, SSH, or API inaccessible.

Insufficient protection against management plane flooding in Cisco Industrial Ethernet 1000 Series Switches allows an unauthenticated remote attacker to send high-rate ICMP, SSH, or HTTP traffic, raising CPU usage and causing a denial-of-service condition on the device manager web GUI, SSH, or API. Data traffic through the device is not affected. Cisco has released software updates to address the issue.

Cisco Security Advisories · 28d agoAdvisory

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

Researcher Chaotic Eclipse released GreenSection, a PoC exploit for an NVIDIA Windows user-mode shared-memory flaw enabling out-of-bounds writes and potential dwm.exe compromise.

Researcher Chaotic Eclipse (aka Nightmare Eclipse) released a PoC named GreenSection for a zero-day in NVIDIA's Windows user-mode components. Multiple NVIDIA components share a global memory section in BaseNamedObjects with full read/write access to all users; although checks prevent misuse, runtime reuse of section data can cause an out-of-bounds write. The unstable PoC crashes applications using Vulkan or OpenGL and could potentially cross user boundaries or compromise the Windows Desktop Window Manager (dwm.exe), though impact was not fully investigated. The researcher recently published similar zero-day PoCs against Kaspersky Endpoint Security, Avast Antivirus, and CrowdStrike Falcon.

Security Affairs · 9d agoExploit / PoC 2 sources

GNU GRUB 2.14: serial-MMIO lockdown bypass in Canonical-signed gcdx64.efi

Canonical-signed GRUB2 serial command accepts arbitrary MMIO addresses, letting local attackers with grub.cfg control bypass Secure Boot lockdown.

A vulnerability in Canonical's grub-efi-amd64-signed (gcdx64.efi, GRUB 2.14) exposes a serial command that accepts a caller-supplied 64-bit MMIO base address. The lockdown path does not restrict this command even when lockdown=y under UEFI Secure Boot, and the serial implementation does not validate that the requested register span belongs to a real UART rather than ordinary RAM. A local attacker with control of GRUB's boot configuration can abuse this to bypass the Secure Boot lockdown.

oss-security · 3d agoVulnerability2

NVIDIA security advisory (AV26-849)

Canada's Cyber Centre relayed NVIDIA security advisories covering vulnerabilities in NemoClaw, OpenShell, Unified Fabric Manager, and DGX Spark.

The Canadian Centre for Cyber Security issued bulletin AV26-849 flagging NVIDIA vulnerabilities across NemoClaw and OpenShell (multiple versions), NVIDIA Unified Fabric Manager (multiple versions and models), and DGX Spark (versions prior to 1.110.13). The advisory links to NVIDIA security bulletins and urges users and administrators to apply updates as they become available. No exploitation details or CVE identifiers are enumerated in the advisory text.

Canadian Centre for Cyber Security · 21d agoAdvisory

USN-8730-1: Linux kernel vulnerability

Ubuntu issued USN-8730-1 fixing Linux kernel flaws in IPv6 networking and Netfilter that could allow system compromise.

Ubuntu released USN-8730-1 addressing a security issue discovered in the Linux kernel. The update corrects flaws in the IPv6 networking and Netfilter subsystems. Ubuntu states an attacker could possibly use the issue to compromise the system.

Ubuntu Security Notices · 9d agoAdvisory 6 sources

SonicWall security advisory (AV26-884)

Canada's Cyber Centre issued advisory AV26-884 warning that SonicWall Network Security Manager On-Prem 4.3.0 and earlier are affected by multiple vulnerabilities.

The Canadian Centre for Cyber Security published advisory AV26-884 on September 4, 2026, flagging SonicWall Network Security Manager (NSM) On-Prem across VMware, Hyper-V, Azure, and KVM deployments, versions 4.3.0 and earlier, as affected by multiple vulnerabilities. The advisory does not list CVE identifiers, exploit details, or in-the-wild exploitation. Administrators are encouraged to review the referenced links and apply updates as they become available.

Canadian Centre for Cyber Security · 8d agoAdvisory

SonicWall SMA 1000 Zero-Days Enable Unauthenticated RCE

New SonicWall SMA 1000 zero-days enable unauthenticated remote code execution, with exploitation observed following earlier summer attacks on other SonicWall edge zero-days.

Zero-day vulnerabilities in SonicWall's SMA 1000 secure access appliances allow unauthenticated remote code execution, and exploitation activity is being observed. This follows attacks earlier in the summer that abused two other zero-day vulnerabilities in SonicWall edge devices. Internet-facing appliances used for remote access make this an urgent patching priority for defenders.

Dark Reading · 14d agoExploit / PoC in the wild

USN-8747-1: Beets vulnerability

Ubuntu released USN-8747-1 fixing a Beets web interface flaw that let attackers inject HTML or execute JavaScript via untrusted media metadata.

Ubuntu Security Notice USN-8747-1 addresses a vulnerability in the Beets music library manager, which incorrectly escaped untrusted media metadata in its web interface. An attacker could exploit this to inject arbitrary HTML or execute arbitrary JavaScript code in a user's browser. Updated packages are available for affected Ubuntu releases.

Ubuntu Security Noticesupdated · 6h agofirst · 6d agoAdvisory 15 sources

USN-8767-1: Snapcast vulnerability

Ubuntu patches Snapcast mishandling of crafted JSON-RPC requests enabling remote code execution and data exposure.

Ubuntu security notice USN-8767-1 addresses a vulnerability in Snapcast, a multiroom audio streaming server. The software incorrectly handled crafted JSON-RPC requests, which could allow a remote attacker to execute arbitrary code or obtain sensitive information. Users are advised to update the snapcast package.

Ubuntu Security Notices · 1d agoAdvisory

ZDI-26-569: Linux Kernel Net Scheduler True Link Equalizer Race Condition Local Privilege Escalation Vulnerability

ZDI publishes ZDI-26-569, a CVSS 7.5 race condition local privilege escalation in the Linux kernel net scheduler true link equalizer.

The Zero Day Initiative disclosed a race condition in the Linux kernel's net scheduler true link equalizer component enabling local privilege escalation. Exploitation requires the attacker to first run high-privileged code on the target system. The advisory carries a CVSS rating of 7.5; no CVE id is listed in the disclosure text.

ZDI Published Advisories · Aug 13, 2026Advisory