CVE Watch30 jul 2026

CVE-2023-1281

Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can

CVSS

7.8

Alto

EPSS

0.3%

p23

KEV

—

Exploit Today

0-100

Publicado: 22 mar 2023 · Última mod.: 30 jul 2026 · CWE-416

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-132026-09-09

Descripción técnica

Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.

Referencias oficiales

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