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.
| Vendor | Linux |
|---|---|
| Product | Kernel |
| Date added to KEV | 2026-08-27 |
| Due date (BOD 22-01) | 2026-08-30 |
| Known ransomware campaign use | Unknown |
| CWE | Not listed in feed |
| Required action | 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. |
What to do
- Identify every instance of Linux Kernel in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: 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.
- Federal civilian agencies must act by 2026-08-30 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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Sources
- NVD entry for CVE-2026-53362 (severity scores, if any, live there)
- CISA KEV catalog entry
- https://git.kernel.org/stable/c/14200d435af9a9eeb444f529fc2f689a236b7962
- https://git.kernel.org/stable/c/65fb14cbebb0cd0eff903a22d33537ddc8b95769
- https://git.kernel.org/stable/c/46f201f8b4c39633a1fa3dc12459f506d470993d
- https://git.kernel.org/stable/c/6374fb9edf72c67a118a2c214a0dddd04c921e0a
- https://git.kernel.org/stable/c/e9eacf19281ea2498b36291b56c9606118c2d74e
- https://git.kernel.org/stable/c/736b380e28d0480c7bc3e022f1950f31fe53a7c5
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-53362