PT-2026-27732 · Linux · Linux Kernel

Published 2026-01-01 · Updated 2026-04-20 · CVE-2026-23367

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a flaw within the radiotap parser. Specifically, the parser does not properly handle radiotap data containing undefined fields, leading to the potential for an uninitialized variable comparison. This occurs when field 18 is used, and the alignment/size is unknown. The issue arises because iterator-> next ns data is not initialized in certain scenarios, resulting in a comparison against an uninitialized value.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2026-23367

ECHO-CA97-5C89-6AD4

OPENSUSE-SU-2026:20826-1

SUSE-SU-2026:21841-1

Affected Products

Linux Kernel

References · 24

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23367.json · Exploit
• https://git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992 · Patch
• https://git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781 · Patch
• https://git.kernel.org/stable/c/6f80f6a60f5d87e5de5fb2732751fce799991c24 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-23367 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23367 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23367 · Vendor Advisory
• https://git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23367 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-23367 · Vendor Advisory
• https://git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1d · Patch
• https://git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-23367 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23367 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-23367 · Vendor Advisory