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VulnerabilityPublished Updated

CVE-2026-93791: Linux kernel · wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

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Authoritative record:CVE-2026-93791· Medium

Not known to be exploited · fixed in 03084a2c61838ce6a12f082025cbf9ed869f0492 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 16:33 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 03084a2c61838ce6a12f082025cbf9ed869f0492, 59f64c2839022f41a7867b38f9e38c185ff39283, 0f690fd3b5535d110898b99ae6214f29c9060941 +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Sep 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 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ c46e7724bfe9bbff17bc468903a757248b99e4ed, < 03084a2c61838ce6a12f082025cbf9ed869f0492
Fixed in
  • 03084a2c61838ce6a12f082025cbf9ed869f0492
LinuxLinuxAffected
  • ≥ c46e7724bfe9bbff17bc468903a757248b99e4ed, < 59f64c2839022f41a7867b38f9e38c185ff39283
Fixed in
  • 59f64c2839022f41a7867b38f9e38c185ff39283
LinuxLinuxAffected
  • ≥ c46e7724bfe9bbff17bc468903a757248b99e4ed, < 0f690fd3b5535d110898b99ae6214f29c9060941
Fixed in
  • 0f690fd3b5535d110898b99ae6214f29c9060941
LinuxLinuxAffected
  • ≥ c46e7724bfe9bbff17bc468903a757248b99e4ed, < 0e4c0d83267261cf67ec9690856edf4a56bb7dfc
Fixed in
  • 0e4c0d83267261cf67ec9690856edf4a56bb7dfc
LinuxLinuxAffected
  • ≥ c46e7724bfe9bbff17bc468903a757248b99e4ed, < 0b5325a0771674f1d65618de7db3df9d49186a12
Fixed in
  • 0b5325a0771674f1d65618de7db3df9d49186a12
LinuxLinuxAffected
  • =4.9
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.

References

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