Latest Cybersecurity News & Insights

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Cisco Catalyst SD-WAN Controller Auth Bypass Actively Exploited to Gain Admin Access

Cisco has released updates to address a maximum-severity authentication bypass flaw in Catalyst SD-WAN Controller that it said has been exploited in limited attacks. The vulnerability, tracked as CVE-2026-20182, carries a CVSS score of 10.0. "A vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, and Cisco Catalyst SD-WAN Manager, formerly

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Enhancing Data Center Security Without Sacrificing Performance

For AI data centers, where the stakes are the highest and performance constraints are the tightest, security and performance are no longer a zero-sum game. The post Enhancing Data Center Security Without Sacrificing Performance appeared first on SecurityWeek.

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New Linux Kernel Vulnerability Fragnesia Allows Root Privilege Escalation

The vulnerability, tracked as CVE-2026-46300, is similar to the recently disclosed exploits named Dirty Frag and Copy Fail. The post New Linux Kernel Vulnerability Fragnesia Allows Root Privilege Escalation appeared first on SecurityWeek.

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Mythos Proves Potent in Vulnerability Discovery, Less Convincing Elsewhere

Independent benchmarking finds Mythos highly effective for source code audits, reverse engineering, and native-code analysis, though its exploit validation and reasoning capabilities remain inconsistent. The post Mythos Proves Potent in Vulnerability Discovery, Less Convincing Elsewhere appeared first on SecurityWeek.

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Akamai to Acquire AI and Browser Security Firm LayerX for $205 Million

The acquisition enables Akamai to expand its Zero Trust portfolio to add protection directly into the browser. The post Akamai to Acquire AI and Browser Security Firm LayerX for $205 Million appeared first on SecurityWeek.

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PraisonAI CVE-2026-44338 Auth Bypass Targeted Within Hours of Disclosure

Threat actors have been observed attempting to exploit a recently disclosed security vulnerability in PraisonAI, an open-source multi-agent orchestration framework, within four hours of public disclosure. The vulnerability in question is CVE-2026-44338 (CVSS score: 7.3), a case of missing authentication that exposes sensitive endpoints to anyone, potentially allowing an attacker to invoke the

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Hackers Targeted PraisonAI Vulnerability Hours After Disclosure

The first exploitation attempts were observed less than four hours after the authentication bypass was publicly disclosed. The post Hackers Targeted PraisonAI Vulnerability Hours After Disclosure appeared first on SecurityWeek.

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Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation

An anonymous cybersecurity researcher who disclosed three Microsoft Defender vulnerabilities has returned with two more zero-days involving a BitLocker bypass and a privilege escalation impacting Windows Collaborative Translation Framework (CTFMON). The security defects have been codenamed YellowKey and GreenPlasma, respectively, by the researcher, who goes by the online aliases Chaotic Eclipse

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High-Severity Vulnerability Patched in VMware Fusion

The patch was announced as Broadcom is attending the Pwn2Own hacking competition in Berlin this week. The post High-Severity Vulnerability Patched in VMware Fusion appeared first on SecurityWeek.

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Researcher Drops YellowKey, GreenPlasma Windows Zero-Days

YellowKey is a BitLocker bypass that requires physical access. GreenPlasma enables elevation of privileges to System. The post Researcher Drops YellowKey, GreenPlasma Windows Zero-Days appeared first on SecurityWeek.

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New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption

Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local attackers to gain root access, making it the third such bug to be identified in the kernel within a span of two weeks. Codenamed Fragnesia, the security vulnerability is tracked as CVE-2026-46300 (CVSS score: 7.8) and is rooted in the Linux kernel's XFRM

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18-Year-Old NGINX Rewrite Module Flaw Enables Unauthenticated RCE

Cybersecurity researchers have disclosed multiple security vulnerabilities impacting NGINX Plus and NGINX Open, including a critical flaw that remained undetected for 18 years. The vulnerability, discovered by depthfirst, is a heap buffer overflow issue impacting ngx_http_rewrite_module (CVE-2026-42945, CVSS v4 score: 9.2) that could allow an attacker to achieve remote code execution or cause a

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What Security Leaders Say About the First AI-Developed Zero-Day Exploit

Security leaders discuss the first AI-created zero-day exploit. 

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Microsoft's MDASH AI System Finds 16 Windows Flaws Fixed in Patch Tuesday

Microsoft has unveiled a new multi-model artificial intelligence (AI)-driven system called MDASH to facilitate vulnerability discovery and remediation at scale, adding that it's being tested by some customers as part of a limited private preview. MDASH, short for multi-model agentic scanning harness, is designed as a model-agnostic system that uses bespoke AI agents for different vulnerability

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Microsoft Patches Critical Zero-Click Outlook Vulnerability Threatening Enterprises

CVE-2026-40361 is similar to a vulnerability found a decade ago, BadWinmail, which at the time was dubbed an “enterprise killer”. The post Microsoft Patches Critical Zero-Click Outlook Vulnerability Threatening Enterprises appeared first on SecurityWeek.

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New Exim BDAT Vulnerability Exposes GnuTLS Builds to Potential Code Execution

Exim has released security updates to address a severe security issue affecting certain configurations that could enable memory corruption and potential code execution. Exim is an open-source Mail Transfer Agent (MTA) designed for Unix-like systems to receive, route, and deliver email. The vulnerability, tracked as CVE-2026-45185, aka Dead.Letter, has been described as a use-after-free

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Claude Mythos Finds Only One Curl Vulnerability; Experts Divided on What It Really Means

Curl’s lead developer says Mythos claims are marketing, but many in the industry believe the results stem from Curl’s robust security. The post Claude Mythos Finds Only One Curl Vulnerability; Experts Divided on What It Really Means appeared first on SecurityWeek.

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OpenAI Launches Daybreak for AI-Powered Vulnerability Detection and Patch Validation

OpenAI has launched Daybreak, a new cybersecurity initiative that brings together frontier artificial intelligence (AI) model capabilities and Codex Security to help organizations identify and patch vulnerabilities before attackers find a way in using the same issues. "Daybreak combines the intelligence of OpenAI models, the extensibility of Codex as an agentic harness, and our partners across

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cPanel CVE-2026-41940 Under Active Exploitation to Deploy Filemanager Backdoor

A threat actor named Mr_Rot13 has been attributed to the exploitation of a recently disclosed critical cPanel flaw to deploy a backdoor codenamed Filemanager on compromised environments. The attack exploits CVE-2026-41940, a vulnerability impacting cPanel and WebHost Manager (WHM) that could result in an authentication bypass and allow remote attackers to gain elevated control of the control

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Hackers Used AI to Develop First Known Zero-Day 2FA Bypass for Mass Exploitation

Google on Monday disclosed that it identified an unknown threat actor using a zero-day exploit that it said was likely developed with an artificial intelligence (AI) system, marking the first time the technology has been put to use in the wild in a malicious context for vulnerability discovery and exploit generation. The activity is said to be the work of cybercrime threat actors who appear to