Attackers are increasingly targeting the management systems used to control enterprise infrastructure, with several critical vulnerabilities actively exploited before or shortly after vendors disclosed them. [...]
ShinyHunters claims FBI breach via PeopleSoft zero-day, steals staff data; FBI investigating, no confirmation yet. The popular cybercrime group ShinyHunters is claiming that it breached the U.S. Federal Bureau of Investigation (FBI) and stole sensitive information belonging to FBI employees and job applicants. The group says the operation was not financially motivated and was instead […]
Arista Networks has released security patches for a zero-day flaw that is being actively exploited and affects VeloCloud Orchestrator (VCO) On-Prem deployments. [...]
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.
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.
The ShinyHunters extortion gang claims it breached FBI systems using a new Oracle PeopleSoft zero-day vulnerability, gaining access to internal services and stealing sensitive data on employees and job applicants. [...]
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
The researcher Chaotic Eclipse released BigDiskBuster, a PoC exploit for a Windows Defender Update DoS Zero-Day vulnerability. Security researcher Chaotic Eclipse, also known as INFINITE NIGHTMARE, MSNightmare and Nightmare-Eclipse, released a new zero-day exploit targeting Microsoft Defender. The researcher named the exploit BigDiskBuster, it triggers a Denial of Service Vulnerability in Windows Defender Update. The security researcher […]
Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates. [...]
A browser. A plugin. A package. A login screen. Normal stuff. That is basically the problem this week. The trouble keeps showing up inside things people already trust: code that takes a bad turn, old payloads coming back, exposed systems, weak checks, fake fixes, and attack paths that look almost too easy. Even the research side is getting messy, with more findings, more automation, and not
Check Point Security Management and Log Servers are affected by a critical vulnerability that can allow remote code execution with root privileges. The post Check Point, Kaspersky, Tanium Patch Product Vulnerabilities appeared first on SecurityWeek.
Remote, unauthenticated attackers can exploit the vulnerability to bypass authentication via crafted requests. The post Active Exploitation Triggers Emergency Patch for Cisco ISE Zero-Day appeared first on SecurityWeek.
Google has released the September 2026 security patches to address 110 vulnerabilities affecting its Pixel devices, including one zero-day flaw actively exploited in targeted attacks. [...]
A critical security flaw in WSO2 API Manager has come under active exploitation in the wild, according to findings from watchTowr. The vulnerability, tracked as CVE-2026-5430 (CVSS score: 9.8/10.0), is a case of improper verification of a cryptographic signature that could result in account takeover. Hacktron Team has been credited with discovering and reporting the flaw. "JWT authentication
AI is shrinking the time between vulnerability disclosure and exploitation, leaving defenders less time to wait for patches or public exploits. Picus Security explains how exploitability validation, security control testing, and autonomous pentesting can help teams close exposure gaps before attackers arrive. [...]
Two China-linked groups ran identical Chrome/Windows zero-day exploits against NGOs, before Chrome’s patch shipped, deploying different backdoors each. Two China-linked threat actors used the same Chrome/Windows zero-day against NGOs starting September 1, 2026, Volexity’s new report lays out the whole chain in detail. On September 1, Volexity detected a spear-phishing campaign by UTA0560 targeting several […]
Japan ‘s Digital Agency disclosed a VPN breach exposing 246,000 government employee records across 23 ministries. Detected June 25, publicly disclosed September 11. Japan ‘s Digital Agency disclosed that attackers exploited a vulnerability in a VPN device to access its Government Solution Service (GSS), potentially leaking personal information belonging to approximately 246,000 government employees, public […]
A Chinese threat actor has been attributed to a spear-phishing campaign that exploits recently patched security flaws in Google Chrome and Microsoft Windows to deliver a malicious JavaScript backdoor called GRIMWEDGE. Volexity, which is tracking the threat cluster under the moniker UTA0560, said the activity targeted multiple non-governmental organizations (NGOs) on September 1, 2026. "The
Multiple espionage-motivated threat actors have adopted BlueMoon in opportunistic, rushed deployments. The post BlueMoon Exploit Kit Chains Recent Chrome, Windows Zero-Days appeared first on SecurityWeek.
The Dubai-based threat detection startup uses artificial intelligence tools to scan billions of IP addresses to find exposed assets, leaked data, and zero-day vulnerabilities.
PaperCut on Thursday released a new security maintenance release that replaces all previously published emergency patches that were pushed to address two security flaws that have come under active exploitation. The software development company said PaperCut NG/MF versions 26.0.5, 25.0.13 and 24.1.10 are now available for customers to download. "These are Regular Maintenance Releases (MR) that
The disgruntled researcher continued their vendetta against Microsoft by publishing yet another zero-day exploit for Windows Defender.
Multiple cyber-espionage groups deployed an exploit kit dubbed "BlueMoon" that leveraged zero-day vulnerabilities in Microsoft Windows and Google Chrome. [...]
Learn why Tenable treats agentic LLMs as untrusted insiders, and how we’ve made sure you can control and monitor the AI agents making changes in your production security environmentKey takeawaysAI models can quickly understand data, but not your business. While modern AI models are great at reasoning, they don’t automatically understand your unique environment or who is allowed to do what. The “harness” is the custom-built layer that translates AI intelligence into safe, controlled actions spec…
The exploit provides full System privileges on Windows machines running the September 2026 patches. The post New ‘ShieldCrash’ Zero-Day Exploit Targets Microsoft Defender appeared first on SecurityWeek.
Four espionage groups used the BlueMoon Chrome+Windows exploit kit within 12 days. Researchers suspect AI development. Proofpoint published a detailed analysis of a Chrome-and-Windows exploit kit it tracks as BlueMoon that four nation-state actors adopted within roughly two weeks of the first observed use. Google’s Threat Intelligence Group, Microsoft’s MSTIC, and Volexity all contributed to […]
A Google Chrome bug identified in August was exploited by at least four China-linked cyber-espionage groups, according to researchers.
Six critical vulnerabilities in Neurons for ITSM could enable remote code execution, while Sentry and EPMM received patches for authentication bypass flaws. The post Ivanti Patches Critical Flaws Across Enterprise Security Products appeared first on SecurityWeek.
The Chrome update includes 230 security fixes, and users are advised to update their browsers as soon as possible. The post Chrome 153 Patches Seventh Zero-Day of 2026 appeared first on SecurityWeek.
