8.8

CVE-2026-80935: linux

CVSS: 8.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-80935DEBIAN-CVE-2026-80935
Published 11-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-80935 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.40%
0%100%
Low · +0.16 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11805-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: bound the device EEPROM address before the EFUSE copy mt7996_mcu_get_eeprom() derives the destination of the EFUSE/EXT block copy from the address reported by the MCU response (event->addr, a device-controlled __le32) and clamps only the copy length, never the destination offset into dev->mt76.eeprom.data. A malicious or malfunctioning device can report an arbitrary address and drive an out-of-bounds write of up to MT7996_EXT_EEPROM_BLOCK_SIZE bytes 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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

+0.16 pp

From 0.24% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu142 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.113-1 | < 7.2.6-1
Linux1 product
  • linux≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 4892be1ef0bbe6db6b13bf46cb79b6706bb5b214 | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 388f471ca4758f644394b681ce97677a4d0e772c | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 9e5abb5e2ade0b6fd0e47209711115d47a255176 | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 6be59da2063d5b3522bfde8aae0487ec095eb384 | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 13b3c29a782033ce4a230be9e5618032813dbcd4 | 6.2

3 vendors · 144 products

References

9 links