# wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif

CVE record · `CVE-2026-93790`

- **Identifiers:** `CVE-2026-93790`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **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: `41fd2fec56db2564f02532ed7244e1f69193b4ad to before ed9869e64dd7a397a320ae7a37f1e4a36f866f74` (git)
  - affected: `41fd2fec56db2564f02532ed7244e1f69193b4ad to before 35f991d685feafd27255bd33272512c434e52527` (git)
  - affected: `41fd2fec56db2564f02532ed7244e1f69193b4ad to before c48b741277b01b2c3b4ecccedc72fc575b71dc04` (git)
  - affected: `41fd2fec56db2564f02532ed7244e1f69193b4ad to before e8ac5e91b1296f65c3d119fac3fa917ff458f811` (git)
  - affected: `41fd2fec56db2564f02532ed7244e1f69193b4ad to before 94d3982806c7f194b23484befde12934dda23064` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.15`
  - unaffected: `before 4.15` (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 iwlwifi wireless driver (mvm component) is affected from 4.15 until fixed. The source gives few details on what an attacker needs, and says no harm occurred in practice because the index was always 0. Upgrade to Linux 6.1.191, 6.6.158, 6.12.111, or 6.18.53 or later in those series.

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

- 8.8 High, CVSS 3.1: `CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0025, the 17th 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-2026-93790](https://www.cve.org/CVERecord?id=CVE-2026-93790)
- [NVD: CVE-2026-93790](https://nvd.nist.gov/vuln/detail/CVE-2026-93790)

### References from the CNA

- <https://git.kernel.org/stable/c/ed9869e64dd7a397a320ae7a37f1e4a36f866f74>
- <https://git.kernel.org/stable/c/35f991d685feafd27255bd33272512c434e52527>
- <https://git.kernel.org/stable/c/c48b741277b01b2c3b4ecccedc72fc575b71dc04>
- <https://git.kernel.org/stable/c/e8ac5e91b1296f65c3d119fac3fa917ff458f811>
- <https://git.kernel.org/stable/c/94d3982806c7f194b23484befde12934dda23064>

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-2026-93790>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93790/>. Everything for agents: <https://agentprime.io/llms.txt>.