# wifi: iwlwifi: mvm: fix a possible underflow

CVE record · `CVE-2026-93792`

- **Identifiers:** `CVE-2026-93792`
- **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: `f444eb10d537c776ce82fbcd07733d75f45346f1 to before 2df7c1843bdc65157bccd6110f005b93bdde39de` (git)
  - affected: `f444eb10d537c776ce82fbcd07733d75f45346f1 to before 3ea815f401652003c2eec3b8969f74526f1342f0` (git)
  - affected: `f444eb10d537c776ce82fbcd07733d75f45346f1 to before 38ad8339211bf24c19126ec7629ea52094676454` (git)
  - affected: `f444eb10d537c776ce82fbcd07733d75f45346f1 to before 83f32942a501c80f44b8a8f668bc8b56d5d0d43f` (git)
  - affected: `f444eb10d537c776ce82fbcd07733d75f45346f1 to before 0cb5260a1027a43f8cdb961e128f2ddd42e46832` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.9`
  - unaffected: `before 3.9` (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 driver (mvm component, wifi subsystem) is affected in a range of versions starting from commit f444eb10d537 up to several fixed commits, and kernels from 3.9 are listed as affected. The source gives few details: it says the driver should not trust the firmware-reported length of a wowlan packet, which can lead to an underflow. No attacker requirements or impact are described. The source lists fixed kernel versions in the 6.1, 6.6, 6.12 and 6.18 series, so upgrade to a fixed stable release for your branch.

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 13 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-2026-93792](https://www.cve.org/CVERecord?id=CVE-2026-93792)
- [NVD: CVE-2026-93792](https://nvd.nist.gov/vuln/detail/CVE-2026-93792)

### References from the CNA

- <https://git.kernel.org/stable/c/2df7c1843bdc65157bccd6110f005b93bdde39de>
- <https://git.kernel.org/stable/c/3ea815f401652003c2eec3b8969f74526f1342f0>
- <https://git.kernel.org/stable/c/38ad8339211bf24c19126ec7629ea52094676454>
- <https://git.kernel.org/stable/c/83f32942a501c80f44b8a8f668bc8b56d5d0d43f>
- <https://git.kernel.org/stable/c/0cb5260a1027a43f8cdb961e128f2ddd42e46832>

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-2026-93792>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93792/>. Everything for agents: <https://agentprime.io/llms.txt>.
