PwnKit Five Years On: Why CVE-2021-4034 Still Lives in Production
PwnKit was a trivial local privilege escalation in polkit that affected nearly every Linux distribution for over a decade. The technical details and the residual risk in 2026.
Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
PwnKit was a trivial local privilege escalation in polkit that affected nearly every Linux distribution for over a decade. The technical details and the residual risk in 2026.
A WinRAR vulnerability exploited since April 2023 allowed attackers to execute arbitrary code when users opened seemingly harmless files inside ZIP archives.
CVE-2025-23006 is a pre-auth deserialization RCE in SonicWall SMA 1000. Exploit chain, detection signals, and appliance hardening.
A critical authentication bypass in Ivanti's Endpoint Manager Mobile was exploited to breach Norwegian government agencies, earning a perfect CVSS 10.0 score.
A speculative execution bug in AMD Zen 2 processors allows attackers to steal sensitive data at 30KB per core per second, affecting cloud environments and shared infrastructure.
CVE-2023-3519 allowed unauthenticated remote code execution on Citrix NetScaler ADC and Gateway devices, leading to widespread exploitation and CISA emergency directives.
A reflected XSS vulnerability in Zimbra Collaboration was exploited by four distinct threat groups targeting government organizations worldwide. The campaign showed how even 'low severity' bugs enable espionage.
Researchers demonstrated that Microsoft Teams' default configuration allowed external attackers to deliver malware directly to employees, bypassing email security controls entirely.
While organizations were still reeling from the first MOVEit zero-day, a second critical vulnerability was found — raising questions about the product's security.
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