ZeroHour

Source: SecurityWeek

8 stories in the last 3d

$1 Million Sandbox Challenge Uncovers Linux Kernel Flaws

Vercel's $1M sandbox challenge surfaced two Linux kernel networking defects—one leaking host kernel memory, one crashing hosts—with CVEs pending.

Vercel ran a two-week, $1 million sandbox escape challenge (Aug 18–Sep 1) on its Firecracker-based microVM sandbox, receiving 1,285 reports and committing ~$325k in payouts (1 Critical, 7 High, 15 Medium, 49 Low validated so far). No attacker accessed real customer data. The most important filing found two independent Linux kernel networking stack defects—one leaks host kernel memory, the other deterministically crashes the host—with wide implications for cloud providers isolating workloads via the same kernel layer. Fixes are under private review with CVEs pending; Vercel also plans to open-source its agentic report-triage agent built on the Eve framework running Kimi K3.

SecurityWeek · 7h agoVulnerability

Texas Utility CenterPoint Energy Confirms Breach After Hacker Leaks Data

CenterPoint Energy confirmed hackers stole customer personal data from an external-facing system after a forum leak of 7.5 million records.

CenterPoint Energy, a Houston-based utility serving roughly 7 million customers across Indiana, Minnesota, Ohio and Texas, told the SEC that an unauthorized third party obtained customer personal information through an external-facing system. On September 12 a hacker claimed to have stolen nearly 7.5 million records and posted a 2.5 GB archive on a cybercrime forum, threatening to attack main infrastructure next. The company says electric and gas delivery is unaffected and it expects no material impact. Earlier 2024 leak claims were attributed to Cl0p's 2023 MOVEit campaign via a third party.

SecurityWeek · 7h agoData breach

240,000 Hit by Data Breach at Japan’s Digital Agency

Japan's Digital Agency says hackers exploited a VPN flaw and a maintenance account to steal ~246,000 records on 240,000 people.

Japan's Digital Agency disclosed a breach of its Government Solution Service (GSS) affecting roughly 240,000 individuals, discovered in late June. Attackers exploited a publicly disclosed vulnerability in a VPN product and used a maintenance and operations employee's account to access over 246,000 records, including names (~236,000), email addresses (~231,000), phone numbers (~94,000), and addresses (~1,000). The agency blocked external access to the affected server, suspended the account, and said no ID numbers or financial account data were compromised.

SecurityWeekupdated · 8h agofirst · 11h agoData breach in the wild 2 sources

Thai Broadband Provider Hacked via Fortinet Vulnerability

Hackers exploited Fortinet CVE-2024-21762 RCE to breach Thai broadband provider 3BB, deploying MeshCentral backdoors and credential-harvesting tools across its network.

Hunt.io uncovered an intrusion staging directory in Thailand containing 298 files of custom tooling built for Triple T Broadband (3BB) and its former owner Jasmine. Initial access came via fingerprinting a FortiGate SSL-VPN appliance and exploiting CVE-2024-21762 for remote code execution, after probing CVE-2018-13379, CVE-2022-42475, and CVE-2023-27997. The actor also probed F5 BIG-IP for CVE-2021-22986, CVE-2022-1388, and CVE-2023-46747, escalated privileges with PwnKit and Dirty COW, used MeshCentral as a C2 backdoor, harvested SSH/database/SNMP/Radius credentials, deployed PHP web shells, and ran cleanup scripts to hide the intrusion.

Hacked HBO Max Reddit Account Used for Malware Delivery via ClickFix Attack

Attackers hijacked HBO Max's verified Reddit account to push 108 malicious ads delivering AMOS and Amatera infostealers via ClickFix prompts.

Threat actors compromised the official u/hbomax Reddit account and ran 108 malicious ads over 48 hours in a campaign tracked as PasteSwitch, directing users to a fake hbomaxx[.]us site. ClickFix prompts tricked macOS users into running curl | zsh payloads (MacSync, AMOS Helper, fake wallets) and Windows users into executing MSHTA/PowerShell delivering Amatera Stealer. AnimateClipper and ZigClipper clipboard hijackers swapped cryptocurrency addresses using a blockchain-hosted C&C active since early 2026. Reddit suspended the ads after notification.

SecurityWeekupdated · 11h agofirst · 14h agoMalware in the wild 7 sources

Personal, Financial Info Exposed in Revolut Data Breach

Revolut says a scammer using a legitimate government agency email domain obtained affected users' PII, ID copies, selfies and full financial records.

Revolut, a London-based neobank serving over 80 million users in 160 countries, notified affected users that personal and financial data was exposed to a third party posing as a government agency. Exposed data included names, addresses, dates of birth, driver's licenses, passports, verification selfies, IBANs, account statements, withdrawal records and full transaction history including Bitcoin. Revolut blocked the attacker's email and notified the relevant agency, regulators and law enforcement, but did not disclose how many individuals were impacted.

SecurityWeek · 1d agoData breach

Telus Warns Customers of Account Breaches

Telus warns customers that attackers used compromised credentials to access accounts and personal data between February 2025 and June 2026.

Telus, one of Canada's largest telecom providers, is notifying customers that attackers accessed consumer telecom accounts using compromised credentials between February 2025 and June 2026. Exposed data includes names, account numbers, phone numbers, billing addresses, email addresses, partial payment card numbers, subscription details, and payment history. The stolen information was used to push customers toward competitors and to make unauthorized service changes; the number of affected accounts is undisclosed. Telus reset credentials, added enhanced monitoring, notified Vancouver police, and offered identity theft protection; the incident may be credential stuffing and follows a ShinyHunters-claimed breach of subsidiary Telus Digital.

SecurityWeek · 1d agoData breach in the wild

Three JFrog Artifactory Flaws Exploited for Backdoor Deployment

Wiz reports multiple actors chaining three JFrog Artifactory auth flaws to gain admin and deploy backdoors; CISA added all three CVEs to KEV.

Wz reports threat actors exploiting CVE-2026-42018, CVE-2026-42016, and CVE-2026-82329 in self-hosted JFrog Artifactory instances to bypass authentication and gain administrative privileges. Between August 15 and September 8, 2026, multiple actors chained CVE-2026-42018 and CVE-2026-42016 to mint anonymous-user tokens, escalate privileges, create persistent admin accounts, install malicious plugins for code execution, and drop second-stage payloads. From early September, CVE-2026-82329 was exploited for configuration exfiltration, cluster key theft, token minting, and SSH key attachment to attacker-created accounts. CISA added all three CVEs to its KEV catalog, giving federal agencies two weeks under BOD 26-04 to patch to versions 7.161.20, 7.146.38, 7.133.29, 7.125.20, 7.117.28, or 7.111.21.