CVE-2026-53266
Linux Kernel Out-of-Bounds Write Vulnerability
Summary
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.
Affected software
Vendor: Linux · Product: Kernel
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Linux
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2026-31431 | Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability | 98.1% | Yes |
| CVE-2022-0847 | Linux Kernel Privilege Escalation Vulnerability | 92.8% | Yes |
| CVE-2016-5195 | Linux Kernel Race Condition Vulnerability | 83.5% | Yes |
| CVE-2021-22555 | Linux Kernel Heap Out-of-Bounds Write Vulnerability | 78.7% | Yes |
| CVE-2019-13272 | Linux Kernel Improper Privilege Management Vulnerability | 52.2% | Yes |
| CVE-2021-3493 | Linux Kernel Privilege Escalation Vulnerability | 49.2% | Yes |
| CVE-2013-2094 | Linux Kernel Privilege Escalation Vulnerability | 47.7% | Yes |
| CVE-2013-6282 | Linux Kernel Improper Input Validation Vulnerability | 39.7% | Yes |
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