Latest Cybersecurity News & Insights

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Researcher Says AI Helped Develop Linux Traffic-Control Race Into Root Exploit

STAR Labs has published a Linux kernel exploit that turns an ordinary local user into root on the CentOS Stream 9 build it targeted. The flaw, tracked as CVE-2026-53264 (CVSS score: 7.8), is a use-after-free race in the kernel's network traffic-control subsystem.Researcher Lee Jia Jie said artificial intelligence (AI) helped him find the bug and speed up exploit development. This is local

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Unpatched Fastjson Vulnerability Exploited in Attacks

The critical remote code execution bug can be exploited without authentication, under the library’s stock default configurations. The post Unpatched Fastjson Vulnerability Exploited in Attacks appeared first on SecurityWeek.

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Critical Arista VeloCloud Orchestrator Vulnerability Exploited as Zero-Day

Impacting on-premises deployments, the OS command injection allows attackers to access privileged internal functionality. The post Critical Arista VeloCloud Orchestrator Vulnerability Exploited as Zero-Day appeared first on SecurityWeek.

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Microsoft Says New Cybersecurity AI Model Helps MDASH Hit 95.95% at Half the Cost

Microsoft has launched its first cybersecurity-specific model inside MDASH, its multi-model vulnerability identification and remediation harness. The company says MDASH, using MAI-Cyber-1-Flash and GPT-5.4, scored 95.95% on CyberGym. It also claims the configuration costs 50% less than its current best MDASH combination of GPT-5.4, GPT-5.4 mini, and GPT-5.3 Codex. Access is limited to approved

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Attackers Exploit Arista VeloCloud Orchestrator Command Injection Flaw

A maximum-severity security flaw impacting on-premises versions of Arista VeloCloud Orchestrator (VCO) has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-16812 (CVSS score: 10.0), is a case of operating system command injection that could pave the way for arbitrary code execution. "VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue

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PTC Windchill Vulnerability Exploited in Ransomware Campaign

The critical unsafe deserialization flaw allows attackers to execute arbitrary code remotely, without authentication. The post PTC Windchill Vulnerability Exploited in Ransomware Campaign appeared first on SecurityWeek.

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n8n Sandbox Escape Lets Workflow Editors Run OS Commands as the n8n Process

n8n has patched a high-severity expression-sandbox escape that could let an authenticated workflow editor execute operating-system commands on the server running the automation platform. Security Joes found the flaw while probing n8n's February fix for CVE-2026-27577 for another bypass. The affected ranges are <2.31.5 and >=2.32.0,<2.32.1. n8n fixed the flaw in versions 2.31.5 and

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Operation BlueDash Deploys Level RMM and ScreenConnect via Fake Teams Update

Cybersecurity researchers have flagged a Microsoft Teams-themed phishing campaign that employs "secure document" lures to deliver legitimate remote monitoring and management (RMM) tools. "The victim was directed through compromised web infrastructure to a counterfeit Microsoft Store page claiming that Microsoft Teams had to be updated before the shared document could be opened," ZeroBEC said in

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Anthropic’s Opus 5 Nears Mythos 5 on Finding Bugs, but Falls Short on Exploits

Binary-based vulnerability scanning, penetration testing, and exploit generation are blocked in Opus 5. The post Anthropic’s Opus 5 Nears Mythos 5 on Finding Bugs, but Falls Short on Exploits appeared first on SecurityWeek.

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Fastjson 1.x RCE Vulnerability Targeted in Attacks With No Patched Available

Security firms ThreatBook and Imperva say attackers are targeting a critical flaw in Fastjson, Alibaba's JSON library for Java. In affected Spring Boot applications, a malicious JSON request can execute code without authentication, with the privileges of the Java process. Tracked as CVE-2026-16723, the vulnerability carries an Alibaba-assigned CVSS score of 9.0. The confirmed chain requires

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ChatGPT AgentForger Flaw Could Deploy Rogue Workspace Agents via a Phishing Link

Cybersecurity researchers have disclosed a critical vulnerability in OpenAI's ChatGPT Workspace Agents that could have allowed a single phishing link to stealthily build, authorize, and deploy an autonomous artificial intelligence (AI) agent inside a victim's organization. The vulnerability has been codenamed AgentForger by Zenity Labs. The issue has since been addressed by OpenAI as of June 8,

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Bing Images Flaws Let Crafted SVGs Run Commands as SYSTEM on Microsoft's Servers

A crafted SVG submitted to Bing's image search ran commands as NT AUTHORITY\SYSTEM on Microsoft's production image-processing workers, and as root on the Linux machines in the same fleet. XBOW's testing got the same result on workers across different hosts and network ranges, so the problem sat in Bing's image tier, not on one bad machine. Microsoft issued two critical CVEs, CVE-2026-32194 and

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NodeBB Patches Eight AI-Found Flaws Exposing Admin Access and Private Chats

Eight security flaws in NodeBB went public on Wednesday, along with the code to exploit them. Aikido Security rates all eight as high severity and says its AI pentest agents found them in a six-hour review of the forum software's source code. Every version before 4.14.0 is affected. NodeBB has fixed them all, and administrators should be on 4.14.2. The simplest one takes a settings change. A

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Kimi K3 Agents Found Redis Zero-Days and Built RCE Exploit, Researchers Say

Redis shipped seven security releases on July 23 after researchers published authenticated RCE PoCs for stock Redis 6.2.22, 7.4.9, 8.6.4, and 8.8.0. All four chains require RESTORE. The Streams chains also need EVAL and XGROUP; the 8.8.0 chain needs EVAL and the bundled RedisBloom module. Redis says the underlying memory flaws may lead to remote code execution. Redis 6.2.23, 7.2.15, and 7.4.10

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Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes

A Russian state-supported espionage group spent months reading Western mailboxes through a then-unknown flaw in Zimbra's webmail client. The payload goes after the last 90 days of email, the organization's entire email directory, the password saved in the browser and the codes kept for two-factor recovery. Opening the message was enough to start it. The NSA, CISA and partner agencies published

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Is Patching Dead? Vulnerability Management in the Post-Mythos Era

You cannot out-patch a machine that writes a working exploit from a vulnerability description in twenty hours. Stop trying to optimize a game you cannot win. The post Is Patching Dead? Vulnerability Management in the Post-Mythos Era appeared first on SecurityWeek.

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Claude Cowork Flaw Could Let AI Agent Escape Its VM and Access Mac Files

Cybersecurity researchers have uncovered a sandbox escape vulnerability in Anthropic's Claude Cowork that makes it possible to break out of the confines of a Linux virtual machine (VM) within which the agent runs to read or write files anywhere on the Mac. Accomplish AI, which shared details of the vulnerability with The Hacker News ahead of publication, said about 500,000 macOS users running

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UK and partners expose Russian state-supported actors for new ‘zero-click’ phishing campaign targeting Western organisations

GCHQ’s National Cyber Security Centre and international partners issue warning as ‘LAUNDRY BEAR’ cyber threat group exposed for targeted phishing campaign

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New Check Point Zero-Day Vulnerability Exploited in the Wild

The vulnerability tracked as CVE-2026-16232 has been exploited against customers with certain configurations. The post New Check Point Zero-Day Vulnerability Exploited in the Wild appeared first on SecurityWeek.

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Nine-Year-Old RefluXFS Linux Flaw Gives Local Users Root on Default RHEL Installs

RefluXFS, a new Linux kernel flaw disclosed on July 22 and tracked as CVE-2026-64600, lets an unprivileged local user overwrite root-owned files on an XFS filesystem and gain persistent root access. Qualys said default installations of Red Hat Enterprise Linux and its derivatives, Fedora Server, and Amazon Linux can meet the conditions for exploitation. The company demonstrated the race