CVE-2026-23367Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: wifi: radiotap: reject radiotap with unknown bits The radiotap parser is currently only used with the radiotap namespace (not with vendor namespaces), but if the undefined field 18 is used, the alignment/size is unknown as well. In this case, iterator->_next_ns_data isn't initialized (it's only set for skipping vendor namespaces), and syzbot points out that we later compare against this uninitialized value. Fix this by moving the rejection of unknown radiotap fields down to after the in-namespace lookup, so it will really use iterator->_next_ns_data only for vendor namespaces, even in case undefined fields are present.

0.5/ 10 priority

Sources & remediation

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 2d ago at 1 mentions (2026-03-25); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
Products
linux_kernel

2 versions affected across 1 product

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-03-25: 1Mentions · 2026-03-26: 1Mentions · 2026-03-27: 1Patch / Workaround · 2026-03-25: 1Technical Details · 2026-03-25: 1Technical Details · 2026-03-26: 103-2503-2603-27
Signal classification3 categories
Patch
133.3%
General
133.3%
Disclosure
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-03-251
Patch1
2026-03-261
General1
2026-03-271
Disclosure1
Full discourse3 posts
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-23367 🚨 Risk Level: Unknown 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-23367 #CVE-2026-23367 #CVE   #CyberSecurity #InfoSec https://t.co/xy0zzOJSif

    Post summary

    This tweet announces CVE‑2026‑23367 with minimal information and links to the NVD entry, but offers no further technical, exploit, or mitigation details.

    0000030
    123 followersView on X
  • WindowsForum@windowsforum
    General

    🚨 Even Linux parser bug fixes can faceplant: “just reject malformed input” still left uninitialized state and crash logic. Reliability > vibes, folks. This matters for Wi‑Fi stability. https://windowsforum.com/threads/cve-2026-23367-fixing-uninitialized-state-in-linux-radiotap-wi-fi-parser.407443/ #LinuxKernel #WiFiSecurity #RadiotapParser #Mac80211 https://t.co/sz1BO38HHN

    Post summary

    The post comments that a recent fix for the Linux Wi‑Fi parser (CVE‑2026‑23367) still leaves an uninitialized state and crash logic, indicating that malformed input is not fully rejected and causing reliability issues.

    0000023
    1.0K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-23367 In the Linux kernel, the following vulnerability has been resolved: wifi: radiotap: reject radiotap with unknown bits The radiotap parser is currently only used wit… https://www.cve.org/CVERecord?id=CVE-2026-23367

    Post summary

    CVE-2026-23367, a Linux kernel radiotap parsing flaw, has been patched according to the vendor advisory; no exploitation or PoC information is mentioned.

    00000102
    56.8K followersView on X
CPE platform detail9 entries

9 of 9 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel2.6.34--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--

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