Zero-Day
New Microsoft Defender ‘ShieldCrash’ zero-day grants SYSTEM access
An anonymous security researcher known as Nightmare Eclipse has released a new Microsoft Defender zero-day exploit named “ShieldCrash” right after Microsoft rolled out its September 2026 Patch Tuesday security updates. ShieldCrash is described as a bypass for the ShieldBreak Defender privilege escalation flaw patched on Thursday, which itself bypassed RoguePlanet, another Defender flaw disclosed in June and patched by Microsoft […]
Google warns of new Chrome zero-day bug exploited in attacks
Google has patched 230 vulnerabilities on Tuesday, including another actively exploited Chrome zero-day bug, the seventh such vulnerability patched since the start of the year. “Google is aware that an exploit for CVE-2026-87491 exists in the wild,” the company said in a Tuesday security advisory. The company began rolling out patched versions to Windows (153.0.8010.36), Mac […]
Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-days
Today is Microsoft’s September 2026 Patch Tuesday, with security updates released for a record-breaking 966 flaws, including two actively exploited zero-day vulnerabilities. This Patch Tuesday addresses 105 “Critical” vulnerabilities, 81 of which are remote code execution, 20 are elevation of privileges, 2 are information disclosure, and 1 security feature bypass. The approximate number of bugs in […]
Magento StyleSmuggler zero-day exploited to deploy Linux backdoor
A zero-day vulnerability dubbed “StyleSmuggler” affecting all versions of Magento and Adobe Commerce is being exploited in attacks to deploy a backdoor. The first exploitation incident was recorded on September 4 on a target running the latest security updates. E-commerce security company Sansec says that Adobe Enterprise Support confirmed earlier today that it was working […]
N-able patches max severity N-central flaw amid ongoing attacks
N-able has released an emergency hotfix for a maximum-severity remote code execution (RCE) flaw affecting its N-central remote monitoring and management (RMM) platform. IT departments and managed service providers (MSPs) use the N-central platform to monitor, manage, and maintain client networks and devices from a centralized web-based console. Tracked as CVE-2026-86218, this RCE vulnerability allows threat […]
SonicWall warns of actively exploited SMA1000 zero-day flaws
SonicWall warned customers that threat actors are chaining two new SMA1000 zero-day vulnerabilities in remote code execution attacks. The first is a maximum-severity command injection flaw (CVE-2026-83548) found in the SMA1000 Appliance WorkPlace interface that stems from a server-side request forgery (SSRF) weakness. This actively exploited zero-day chain also targets a command injection vulnerability (CVE-2026-83549) […]
PaperCut releases second emergency patch for exploited flaws
PaperCut has released a second emergency security update for two actively exploited vulnerabilities in its PaperCut NG and MF print management software after researchers discovered multiple ways to bypass the initial fixes. As GeekFeed reported yesterday, PaperCut warned that hackers were exploiting a vulnerability in zero-day attacks against customer servers and released an initial emergency patch […]
PaperCut warns of NG, MF flaw exploited in zero-day attacks
PaperCut is warning that hackers are actively exploiting a vulnerability in all versions of its PaperCut NG and PaperCut MF print management software in zero-day attacks. The company says it is aware of confirmed attacks on customers and is urging organizations with Internet-exposed PaperCut Application Servers to immediately restrict access to the web interfaces to trusted […]
Unpatched Calix flaw lets hackers bypass NAT to expose internal devices
An unpatched vulnerability in Calix GS7 XGS (GS5239XG) residential routers used by multiple U.S. broadband providers allows remote, unauthenticated attackers to create port-forwarding rules that can expose local network devices to the public internet. The flaw is tracked as CVE-2026-75501 and is described as a missing authentication issue that affects devices running EXOS/6.6.47 firmware. Security […]
Microsoft working on Defender patch for ShieldBreak zero-day
On Friday, Microsoft confirmed it has begun working on a security patch for a Defender zero-day vulnerability named “ShieldBreak.” A security researcher who uses the “Nightmare Eclipse” handle disclosed this privilege escalation vulnerability after Microsoft released the August 2026 Patch Tuesday security updates. ”Microsoft is aware of the reported vulnerability and is actively investigating the […]