7.1

CVE-2026-43052: linux

CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2026-43052DEBIAN-CVE-2026-43052
Published 01-05-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-43052 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.1% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.18%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 40
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:22108-1SUSE-SU-2026:22137-1SUSE-SU-2026:22433-1SUSE-SU-2026:22458-1SUSE-SU-2026:23066-1

Timeline

  1. 01-05-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check tdls flag in ieee80211_tdls_oper When NL80211_TDLS_ENABLE_LINK is called, the code only checks if the station exists but not whether it is actually a TDLS station. This allows the operation to proceed for non-TDLS stations, causing unintended side effects like modifying channel context and HT protection before failing. Add a check for sta->sta.tdls early in the ENABLE_LINK case, before any side effects occur, to ensure the operation is only allowed for actual TDLS peers.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.06 pp

From 0.12% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.18%

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

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < e602246235fc2ef06c39b2e9cf147d84d0896b73 | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < 6813a8b1b240756dad4375f3e020ce10e4e3871b | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < 44839ea7e96b3659a1606f3d5267063135479b7c | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < ba5b43db126a5e7378553869e3f7954d9187349f | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < 8148c2fda4ebb17104a573649c9b699208ad10ee | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < be81f17151fcb8546a95f35ca8f4231b065985de | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < e77b2937aaa20264e4bd699d3244bdb50e7e3343 | ≥ 941c93cd039852b7ab02c74f4698c99d82bd6cfe, < 7d73872d949c488a1d7c308031d6a9d89b5e0a8b | 3.2
  • linux_kernel≥ 3.2, < 6.12.81 | ≥ 6.13, < 6.18.22 | ≥ 6.19, < 6.19.12 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.85-1 | < 6.19.12-1

3 vendors · 160 products

References

41 links
Show all 41 references