Linux Kernel Unspecified Vulnerability (CVE-2026-53362)
Severity: high · Patch status: patched · Since 2026-08-27 · CVE-2026-53362
Linux Kernel contains an unspecified vulnerability that can allow for privilege escalation via IPv6 networking subsystem. This vulnerability can impact multiple products, including but not limited to Suse, Red Hat, and other products using Linux. CISA added CVE-2026-53362 to its Known Exploited Vulnerabilities catalog on Aug 27, 2026, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- US federal agencies must remediate by Aug 30, 2026 (BOD 22-01); treat that as the outer limit.
Sources
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