Latest Cybersecurity News and Articles

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Outerlimit Raises $16 Million to Stop Rogue AI Agents From Causing Harm

Emerging from stealth with $16 million in pre-seed funding, Outerlimit offers a decentralized authorization layer designed to discover, observe, and block harmful autonomous AI actions. The post Outerlimit Raises $16 Million to Stop Rogue AI Agents From Causing Harm appeared first on SecurityWeek.

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Arista Urges Immediate Patching of Exploited VCO Zero-Day

Remote attackers could trigger the critical-severity flaw to access privileged internal functionality. The post Arista Urges Immediate Patching of Exploited VCO Zero-Day appeared first on SecurityWeek.

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F5 Patches Critical BIG-IP APM Zero-Day Exploited for Unauthenticated RCE on OAuth Servers

Attackers are exploiting a critical flaw in F5 BIG-IP Access Policy Manager (APM) that lets them run code on a BIG-IP system without logging in, F5 says. The flaw, CVE-2026-94127, affects only systems in which APM serves as an OAuth authorization server, issuing access tokens to applications. F5 disclosed it in an advisory on September 22 and has released engineering hotfixes.

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Chinese Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy CLEANGULP Malware

A Chinese threat actor codenamed UTA0565 has been observed exploiting the recently disclosed Google Chrome-Microsoft Windows exploit chain as zero-days through fake websites. The attacks, detected on September 3 and 4, 2026, involved the chaining of two vulnerabilities in Chrome (CVE-2026-85046, CVE-2026-87491) and one impacting Windows Advanced Local Procedure Call (CVE-2026-85880) to break

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Critical F5 BIG-IP Vulnerability Exploited as Zero-Day

Unauthenticated attackers could send malicious traffic to BIG-IP to achieve remote code execution. The post Critical F5 BIG-IP Vulnerability Exploited as Zero-Day appeared first on SecurityWeek.

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ShinyHunters Claims FBI Hack, Demands Retraction of Threat Report

The cybercrime group is unhappy with its description in an FBI report and threatens to leak stolen information.  The post ShinyHunters Claims FBI Hack, Demands Retraction of Threat Report appeared first on SecurityWeek.

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Critical Next.js ImageResponse Flaw Can Lead to Server Code Execution via Crafted SVG Input

A new security vulnerability in Next.js could allow attackers to run code on a server via ImageResponse, the feature that generates Open Graph and other social preview images, Vercel said. The risk applies when an app puts values an attacker controls, such as text read from the request URL, into the image. Vercel, which develops Next.js, fixed the flaw on September 22 in version

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Check Point Patches Exploited Management Server Zero-Day

The critical-severity flaw could allow unauthenticated attackers to upload and execute arbitrary scripts. The post Check Point Patches Exploited Management Server Zero-Day appeared first on SecurityWeek.

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ShinyHunters Claims FBI Breach, Says It Stole Data on Agents and Job Applicants

The cyber extortion group known as ShinyHunters on Tuesday claimed it had breached the U.S. Federal Bureau of Investigation and stolen data belonging to current and former employees at the agency. "We have compromised the FBI. We hold very sensitive data on almost ALL FBI Agents and individuals who filed an application with the FBI for a job," the group said in a statement posted on their dark

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Check Point Warns of Management Server Zero-Day Exploited in Targeted Attacks

Attackers exploited a previously unknown flaw in Check Point's Security Management Server in a handful of targeted attacks on July 23, the company said. The flaw, CVE-2026-93616, allows an attacker who can access the server's web service to run scripts on it without logging in. Check Point released a fix on September 22 for the server that controls firewall policies for the Check Point

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WordPress Issues Patch for Critical Flaw That Can Enable Code Execution on Some Servers

WordPress has fixed a critical flaw in its core software that lets an attacker with no account make a site load a PHP file from outside its theme folders. On some servers, that can go further, allowing the attacker to run their own code. The fix shipped on September 22 in WordPress 7.1.2, with fixes for every branch the project still supports, back to 4.7, and WordPress is telling site owners

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Malicious npm Package Poses as Twilio Bug-Bounty Probe, Can Exfiltrate Credentials

Cybersecurity researchers have disclosed details of a malicious npm package named "tw-pkgprobe-7731" that masquerades as a security tool targeting developers integrating Twilio into their applications, while stealthily attempting to harvest sensitive data. The package, named "tw-pkgprobe-7731," was first uploaded to the npm registry in mid-August 2026 by an npm account named "twdepprobe7731."

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BigCommerce Data Stolen via Ribon Apps Hack

The attackers used a compromised BigCommerce application key held by Ribon to access customer data. The post BigCommerce Data Stolen via Ribon Apps Hack appeared first on SecurityWeek.

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Microsoft Takes Down EvilTokens Device-Code Phishing Service Tied to 12,000 Inbox Compromises

Microsoft on Tuesday announced the takedown of the EvilTokens device code phishing service that it said used artificial intelligence (AI) "at every step of the attack chain." The action, carried out with authorization from the U.S. District Court for the Eastern District of Virginia, involved the efforts of Health-ISAC, alongside Cloudflare, Coinbase, OpenAI, Railway, SpyCloud, The Shadowserver

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Critical Bifrost AI Gateway Flaw Lets Attackers Run Commands Without Credentials

A critical vulnerability in Bifrost, an open-source AI gateway that routes requests to more than 20 LLM providers, allows an unauthenticated attacker to run arbitrary commands on the gateway server with a single HTTP request. The flaw, tracked as CVE-2026-90898 (CVSS score: 9.8), affects all versions of the Bifrost HTTP transport before 2.1.0 when management authentication is

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Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates

A zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was published on GitHub on September 19. The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in

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Cyera Raises $400 Million at $12+ Billion Valuation

The data security company received the new investment from Goldman Sachs Alternatives, extending its Series G funding round. The post Cyera Raises $400 Million at $12+ Billion Valuation appeared first on SecurityWeek.

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Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity

Abdelhamid Naceri, a former Microsoft Germany employee, is the exploit leaker Nightmare Eclipse, aka Chaotic Eclipse.  The post Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity appeared first on SecurityWeek.

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AI Agents Are Rewriting the Rules of Lateral Movement

Security teams have spent decades asking whether an identity has too much access. AI agents raise a harder question: how can we determine which paths an autonomous system can discover, given the access it already has? A person may try several ways to complete a task. A deterministic application follows the flow its developer wrote. But an AI agent is relentless in its pursuit of done. In May

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New CVSS 10.0 VeloCloud Orchestrator Flaw Actively Exploited in Certificate-Based Setups

Attackers are exploiting a new flaw in on-premises VeloCloud Orchestrator (VCO), the server that manages the Edge devices in a VeloCloud SD-WAN, Arista said on September 22. The flaw, tracked as CVE-2026-93952, may allow a remote attacker with no login access to privilege internal functions and affect the VCO host. Only orchestrators set up to authenticate their Edges with certificates are