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VulnerabilityPublished Updated

CVE-2026-72441: Linux kernel · ieee802154: fix kernel-infoleak in dgram_recvmsg()

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in fc8766467b53335220b4b594ba15bc8f8cee0c76 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 18:11 UTC

Severity
Low

Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch
Available – fixed in fc8766467b53335220b4b594ba15bc8f8cee0c76, f14802465f5956baafe5f4b4541eb626b06b41f1, de3bd9809af7555611334cb6a071806744430ef7 +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 94b4f6c21cf54029377a0645675a9d81b6cf890d, < fc8766467b53335220b4b594ba15bc8f8cee0c76
Fixed in
  • fc8766467b53335220b4b594ba15bc8f8cee0c76
LinuxLinuxAffected
  • ≥ 94b4f6c21cf54029377a0645675a9d81b6cf890d, < f14802465f5956baafe5f4b4541eb626b06b41f1
Fixed in
  • f14802465f5956baafe5f4b4541eb626b06b41f1
LinuxLinuxAffected
  • ≥ 94b4f6c21cf54029377a0645675a9d81b6cf890d, < de3bd9809af7555611334cb6a071806744430ef7
Fixed in
  • de3bd9809af7555611334cb6a071806744430ef7
LinuxLinuxAffected
  • ≥ 94b4f6c21cf54029377a0645675a9d81b6cf890d, < c88e687e44cb9c7690f5039a5a5941dba1f6a204
Fixed in
  • c88e687e44cb9c7690f5039a5a5941dba1f6a204
LinuxLinuxAffected
  • ≥ 94b4f6c21cf54029377a0645675a9d81b6cf890d, < a2ee1a038a16e286d084bc293a7522d010a59ec3
Fixed in
  • a2ee1a038a16e286d084bc293a7522d010a59ec3
LinuxLinuxAffected
  • ≥ 94b4f6c21cf54029377a0645675a9d81b6cf890d, < 71b5add66c51d6764325de5f2e300bbf4f39e7a6
Fixed in
  • 71b5add66c51d6764325de5f2e300bbf4f39e7a6

AI-suggested

A fix is available and has been applied in the Linux kernel. Users and administrators should update to a fixed kernel version that includes the patch identified by the listed commit hashes. No additional mitigation steps are required beyond applying the official fix.

Description

A kernel information leak vulnerability was fixed in the Linux kernel's ieee802154 subsystem. The flaw involved uninitialized memory in the pan_id field of the ieee802154_addr structure when the address mode was IEEE802154_ADDR_NONE. This uninitialized data could be leaked to user space via the dgram_recvmsg() function. The issue was resolved by zeroing out the address structure to prevent leaking uninitialized stack memory.

References

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