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CVE-2025-39919

wifi: mt76: mt7996: add missing check for rx wcid entries

MEDIUM
5.5
CVSS Score
Published: October 1, 2025 at 07:55 AM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: add missing check for rx wcid entries Non-station wcid entries must not be passed to the rx functions. In case of the global wcid entry, it could even lead to corruption in the wcid array due to pointer being casted to struct mt7996_sta_link using container_of.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.15 ≤ v < 6.16.66.176.17 rc16.17 rc26.17 rc36.17 rc47464b12b7d92b9641d4664735b9f3c3f0b6173d9
Vendor states this is fixed in 4a522b01e368eec58d182ecc47d24f49a39e440d (fixed)
Vendor states this is fixed in 69dcc19048fcdc3fb166fd25b805470ee8fc0eb1 (fixed)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.16.6 (unaffected)
Vendor states this is fixed in 6.17 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: cverecord
https://git.kernel.org/stable/c/69dcc19048fcdc3fb166fd25b805470ee8fc0eb1
Patch
Source: cverecord
https://git.kernel.org/stable/c/4a522b01e368eec58d182ecc47d24f49a39e440d

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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