CISA Adds Three Actively Exploited Linux Kernel Flaws
The US Cybersecurity and Infrastructure Security Agency (CISA) added three Linux kernel security flaws to its catalog of actively exploited vulnerabilities. These vulnerabilities allow local users to access memory, escalate privileges, or disrupt systems, and are now confirmed to be used in real attacks. Red Hat has issued guidance highlighting the urgency of applying fixes. Agencies are urged to patch systems by September 21, 2026.
- Three Linux kernel vulnerabilities flagged by CISA
- Exploitation in the wild is confirmed
- Red Hat urges immediate patching
- Federal agencies must update by September 21, 2026
Sources covering this
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