CVE entry · CVE-2026-53362
CVE-2026-53362: Linux Kernel Unspecified Vulnerability
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.
- Actively exploited: added to CISA’s KEV catalog on August 27, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: August 30, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Linux Kernel, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (git.kernel.org)
- Vendor advisory or reference cited by CISA (git.kernel.org)
- Vendor advisory or reference cited by CISA (git.kernel.org)
- Vendor advisory or reference cited by CISA (git.kernel.org)
- Vendor advisory or reference cited by CISA (git.kernel.org)
- Vendor advisory or reference cited by CISA (git.kernel.org)
- NVD entry (NIST)
- CISA KEV catalog
Other Linux vulnerabilities
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Linux Kernel Out-of-Bounds Write Vulnerability
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Linux Kernel Race Condition Vulnerability
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Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
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Linux Kernel Out-of-Bounds Write Vulnerability
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Linux Kernel Improper Authentication Vulnerability
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Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability