CVE-2026-80937wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy
- 8.8HighCVSS base score
- 0.35%Exploitation in 30 daysEPSS · top 71% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy mt7915_mcu_get_eeprom() copies a fixed EFUSE block into the driver's dev->mt76.eeprom.data buffer at the offset reported by the MCU response (res->addr, a device-controlled __le32) without checking it against the buffer size. A malicious or malfunctioning device can report an arbitrary address and drive a 16-byte out-of-bounds write past eeprom.data. Reject a response whose address would place the copy outside eeprom.data before deriving the destination pointer. Devices that echo the requested in-bounds offset are unaffected.
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
- 49 days later
· 49 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected e57b7901469fc0b021930b83a8094baaf3d81b09 – < ef10a2ec2a74c4a6aa5c086fc0c2b01037569134
- affected e57b7901469fc0b021930b83a8094baaf3d81b09 – < d6774f6af3711143a93281904a928a78652c8b7e
- affected e57b7901469fc0b021930b83a8094baaf3d81b09 – < 394e8cb56fc732d71041599cdb4e01f82cfd11c5
- affected e57b7901469fc0b021930b83a8094baaf3d81b09 – < 5fdaf7016d7684ef756a229fd5d96b4a140eeb40
- affected e57b7901469fc0b021930b83a8094baaf3d81b09 – < 5f48b0d752a76590e2c613aae5345c2474627d1b
- affected e57b7901469fc0b021930b83a8094baaf3d81b09 – < 44b5adfe49499f53002737f5fe81d608c08122fc
- affected 5.8
- unaffected < 5.8
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/ef10a2ec2a74c4a6aa5c086fc0c2b01037569134 (opens in a new tab)
- https://git.kernel.org/stable/c/d6774f6af3711143a93281904a928a78652c8b7e (opens in a new tab)
- https://git.kernel.org/stable/c/394e8cb56fc732d71041599cdb4e01f82cfd11c5 (opens in a new tab)
- https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40 (opens in a new tab)
- https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b (opens in a new tab)
- https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-76260 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80937)Record last updated .