# wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy

CVE record · `CVE-2026-80937`

- **Identifiers:** `CVE-2026-80937`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:42 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: `e57b7901469fc0b021930b83a8094baaf3d81b09 to before ef10a2ec2a74c4a6aa5c086fc0c2b01037569134` (git)
  - affected: `e57b7901469fc0b021930b83a8094baaf3d81b09 to before d6774f6af3711143a93281904a928a78652c8b7e` (git)
  - affected: `e57b7901469fc0b021930b83a8094baaf3d81b09 to before 394e8cb56fc732d71041599cdb4e01f82cfd11c5` (git)
  - affected: `e57b7901469fc0b021930b83a8094baaf3d81b09 to before 5fdaf7016d7684ef756a229fd5d96b4a140eeb40` (git)
  - affected: `e57b7901469fc0b021930b83a8094baaf3d81b09 to before 5f48b0d752a76590e2c613aae5345c2474627d1b` (git)
  - affected: `e57b7901469fc0b021930b83a8094baaf3d81b09 to before 44b5adfe49499f53002737f5fe81d608c08122fc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.8`
  - unaffected: `before 5.8` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 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 mt76 driver for MediaTek mt7915 Wi-Fi devices, from version 5.8 until the fixed stable releases, copies EFUSE data to a device-supplied address without a bounds check, allowing a 16-byte out-of-bounds write. Exploitation requires a malicious or malfunctioning device that reports an arbitrary address. Upgrade to 6.1.191, 6.6.160, 6.12.112, 6.18.50, or a later release 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:** 0.0035, the 28th percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80937](https://www.cve.org/CVERecord?id=CVE-2026-80937)
- [NVD: CVE-2026-80937](https://nvd.nist.gov/vuln/detail/CVE-2026-80937)

### References from the CNA

- <https://git.kernel.org/stable/c/ef10a2ec2a74c4a6aa5c086fc0c2b01037569134>
- <https://git.kernel.org/stable/c/d6774f6af3711143a93281904a928a78652c8b7e>
- <https://git.kernel.org/stable/c/394e8cb56fc732d71041599cdb4e01f82cfd11c5>
- <https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40>
- <https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b>
- <https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc>

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-2026-80937>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80937/>. Everything for agents: <https://agentprime.io/llms.txt>.