THREAT OPS › Threat News › [CISA KEV] CVE-2026-53266 — Linux Kernel: Linux Kernel Out-of-Bounds Write Vulnerability
[CISA KEV] CVE-2026-53266 — Linux Kernel: Linux Kernel Out-of-Bounds Write Vulnerability
CVE: CVE-2026-53266 Vendor: Linux Product: Kernel Vulnerability: Linux Kernel Out-of-Bounds Write Vulnerability Date Added: 2026-09-18 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 applic
MITRE ATT&CK techniques
- Cloud ServicesT1021.007
Indicators of compromise
- bf84ad7c7a9ede46e31afaa41a1ba06a159e8c87sha1
- 76280b78cc9f23bdc6438e10ad6dff148ef8375bsha1
- b7e91939ba9be805a62a257fa4e227dffbb88fa0sha1
- afd64b59c3de9bbbdd3759e834fdc55cda716e0bsha1
- 153ea96c806aea395daba907a4f88480b6ad5093sha1
- b18675263db1147c8e1cab625400c13a0d87bd2dsha1
- c9b5ff59feffb92a147a84a5aa28acd2cb8ff4c5sha1
- 67ba971ae02514d85818fe0c32549ab4bfa3bf49sha1
- CVE-2026-53266cve
- https://git.kernel.org/stable/c/bf84ad7c7a9ede46e31afaa41a1ba06a159e8c87url
- https://git.kernel.org/stable/c/76280b78cc9f23bdc6438e10ad6dff148ef8375burl
- https://git.kernel.org/stable/c/b7e91939ba9be805a62a257fa4e227dffbb88fa0url
- https://git.kernel.org/stable/c/afd64b59c3de9bbbdd3759e834fdc55cda716e0burl
- https://git.kernel.org/stable/c/153ea96c806aea395daba907a4f88480b6ad5093url
- https://git.kernel.org/stable/c/b18675263db1147c8e1cab625400c13a0d87bd2durl
- https://git.kernel.org/stable/c/c9b5ff59feffb92a147a84a5aa28acd2cb8ff4c5url
- https://git.kernel.org/stable/c/67ba971ae02514d85818fe0c32549ab4bfa3bf49url
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-53266