# wifi: iwlwifi: mvm: add a check on the tid coming from the firmware

CVE record · `CVE-2026-93791`

- **Identifiers:** `CVE-2026-93791`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:02 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `c46e7724bfe9bbff17bc468903a757248b99e4ed to before 03084a2c61838ce6a12f082025cbf9ed869f0492` (git)
  - affected: `c46e7724bfe9bbff17bc468903a757248b99e4ed to before 0f690fd3b5535d110898b99ae6214f29c9060941` (git)
  - affected: `c46e7724bfe9bbff17bc468903a757248b99e4ed to before 0b5325a0771674f1d65618de7db3df9d49186a12` (git)
  - affected: `c46e7724bfe9bbff17bc468903a757248b99e4ed to before 59f64c2839022f41a7867b38f9e38c185ff39283` (git)
  - affected: `c46e7724bfe9bbff17bc468903a757248b99e4ed to before 0e4c0d83267261cf67ec9690856edf4a56bb7dfc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.9`
  - unaffected: `before 4.9` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel's iwlwifi mvm wireless driver uses a TID value supplied by the wireless firmware as an array index without a bounds check. The source gives few details on what an attacker needs or what they can achieve. Upgrade to Linux 6.1.191, 6.6.158, 6.12.111, 6.18.53 or a later stable release; affected versions start at 4.9.

Written 12 Nov 2026.

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93791](https://www.cve.org/CVERecord?id=CVE-2026-93791)
- [NVD: CVE-2026-93791](https://nvd.nist.gov/vuln/detail/CVE-2026-93791)

### References from the CNA

- <https://git.kernel.org/stable/c/03084a2c61838ce6a12f082025cbf9ed869f0492>
- <https://git.kernel.org/stable/c/0f690fd3b5535d110898b99ae6214f29c9060941>
- <https://git.kernel.org/stable/c/0b5325a0771674f1d65618de7db3df9d49186a12>
- <https://git.kernel.org/stable/c/59f64c2839022f41a7867b38f9e38c185ff39283>
- <https://git.kernel.org/stable/c/0e4c0d83267261cf67ec9690856edf4a56bb7dfc>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-93791>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-93791/>. Everything for agents: <https://agentprime.io/llms.txt>.