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#proof-of-concept

6 stories taggedproof-of-concept.

A security dashboard interface with multiple monitoring windows, one showing a breach notification alert while another display shows patching tools running in t
Vulnerabilities

Researcher Says Microsoft's Fix for Defender Flaw Doesn't Hold

A second proof-of-concept, nicknamed ShieldCrash, claims to walk straight past Microsoft's patch for the ShieldBreak vulnerability in Defender.

4 min read
A laptop screen showing ChatGPT interface with code execution windows open and failed login attempt messages appearing repeatedly in the background, representin
AI Security

Researcher Claims He Built a Secret Communications Channel Inside ChatGPT's Locked-Down Sandbox

A Palo Alto Networks security researcher showed at Black Hat 2026 how an attacker could trick ChatGPT into running malicious code, steal data from connected accounts, and relay that data out through a backdoor built from failed login messages. OpenAI says the key components have been removed.

4 min read
Developer's workstation showing GitLab interface with malicious notebook files visible in the repository structure, a diff view highlighting suspicious code cha
Vulnerabilities

GitLab Flaw Lets Any Logged-In User Run Commands on Self-Hosted Servers

Researcher Yuhang Wu published working exploit code against GitLab 18.11.3 that hijacks the server through two booby-trapped notebooks and a diff request.

3 min read
Illustration: a darkened server room with a single Windows laptop open on a rack shelf
Vulnerabilities

Researcher Publishes Windows Privilege-Escalation Exploit Hours After Microsoft's Monthly Patch

A proof-of-concept called LegacyHive targets the Windows User Profile Service, raising fresh questions about coordinated disclosure timing.

3 min read
Illustration for the story: A Working Attack Script Is Now Public for the Linux 'Bad Epoll' Root Access Flaw
Vulnerabilities

A Working Attack Script Is Now Public for the Linux 'Bad Epoll' Root Access Flaw

A proof-of-concept, meaning a ready-made demonstration script that shows exactly how to exploit a flaw, has been released for a serious Linux vulnerability. Unpatched Linux servers are now a much easier target.

3 min read
Illustration: a dense server rack interior, cables and blinking amber and red indicator lights casting harsh shadows
Vulnerabilities

CitrixBleed Redux: PoC Drop Triggers Immediate NetScaler Memory-Scrape Campaign

Attackers wasted no time after proof-of-concept code surfaced for a new Citrix NetScaler memory-disclosure bug. The gap between publish and exploit measured in hours, not days.

3 min read
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