Known Exploited Vulnerabilities September 18, 2026 · CISA KEV Catalog

CVE-2026-53266: Linux Kernel Out-of-Bounds Write Vulnerability

Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

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Topics

Vulnerabilities & Patching

Mentions

CVE-2026-53266Linux

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