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NVD / CVE Program· CNA Linux

CVE-2026-43052: wifi: mac80211: check tdls flag in ieee80211_tdls_oper

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.12% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 44839ea7e96b3659a1606f3d5267063135479b7c, 6813a8b1b240756dad4375f3e020ce10e4e3871b, 7d73872d949c488a1d7c308031d6a9d89b5e0a8b.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 44839ea7e96b3659a1606f3d5267063135479b7c, 6813a8b1b240756dad4375f3e020ce10e4e3871b, 7d73872d949c488a1d7c308031d6a9d89b5e0a8b or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
May 1, 2026
Updated
Oct 15, 2026
EPSS
0.1% · 2th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-43052

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel3.2 and later · before 6.12.81
  • linux linux kernel6.13 and later · before 6.18.22
  • linux linux kernel6.19 and later · before 6.19.12
  • linux linux kernel7.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.2affected
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before e602246235fc2ef06c39b2e9cf147d84d0896b73affected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before 6813a8b1b240756dad4375f3e020ce10e4e3871baffected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before 44839ea7e96b3659a1606f3d5267063135479b7caffected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before ba5b43db126a5e7378553869e3f7954d9187349faffected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before 8148c2fda4ebb17104a573649c9b699208ad10eeaffected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before be81f17151fcb8546a95f35ca8f4231b065985deaffected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before e77b2937aaa20264e4bd699d3244bdb50e7e3343affected · git
    • 941c93cd039852b7ab02c74f4698c99d82bd6cfe and later · before 7d73872d949c488a1d7c308031d6a9d89b5e0a8baffected · git
    • before 3.2not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.176-16.1.176-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.19.12-16.19.12-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-43049May 1, 2026 · HID: logitech-hidpp: Prevent use-after-free on force feedback initialisation failure
    31Monitor
  • ← EarlierCVE-2026-43051May 1, 2026 · HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq
    32Monitor
  • Later →CVE-2026-43053May 1, 2026 · xfs: close crash window in attr dabtree inactivation
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux44839ea7e96b3659a1606f3d5267063135479b7cVendor (CNA)
Linux Linux6813a8b1b240756dad4375f3e020ce10e4e3871bVendor (CNA)
Linux Linux7d73872d949c488a1d7c308031d6a9d89b5e0a8bVendor (CNA)
Linux Linux8148c2fda4ebb17104a573649c9b699208ad10eeVendor (CNA)
Linux Linuxba5b43db126a5e7378553869e3f7954d9187349fVendor (CNA)
Linux Linuxbe81f17151fcb8546a95f35ca8f4231b065985deVendor (CNA)
Linux Linuxe602246235fc2ef06c39b2e9cf147d84d0896b73Vendor (CNA)
Linux Linuxe77b2937aaa20264e4bd699d3244bdb50e7e3343Vendor (CNA)
debian:linux6.1.176-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records