In the Linux kernel, the following vulnerability has been resolved:

wifi: wcn36xx: fix OOB read from short trigger BA firmware response

The firmware response length is only checked against sizeof(*rsp) (20
bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read
at buf + 20 without verifying the response contains it. This causes an
out-of-bounds read of stale heap data, corrupting the BA session state.

Add validation that the response includes the candidate data.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
16be1ac55944412e8d132b1db26f994b368c5742 affected < 04aba50212f9f274e1a726fb3873b5ce8da2d821
16be1ac55944412e8d132b1db26f994b368c5742 affected < c07aa0534d50361183833e3803204044cf1d0476
16be1ac55944412e8d132b1db26f994b368c5742 affected < d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35
16be1ac55944412e8d132b1db26f994b368c5742 affected < af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee
16be1ac55944412e8d132b1db26f994b368c5742 affected < d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2
16be1ac55944412e8d132b1db26f994b368c5742 affected < b5e6f21923ca89d90256e7346301056f6502691e
Linux Linux affected
Version Status Constraints
4.7 affected —
0 unaffected < 4.7
6.1.178 unaffected ≤ 6.1.*
6.6.145 unaffected ≤ 6.6.*
6.12.97 unaffected ≤ 6.12.*
6.18.40 unaffected ≤ 6.18.*
7.1.5 unaffected ≤ 7.1.*
7.2 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821 cve-icon cve-icon
https://git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee cve-icon cve-icon
https://git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e cve-icon cve-icon
https://git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476 cve-icon cve-icon
https://git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 cve-icon cve-icon
https://git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 cve-icon cve-icon
History

Fri, 28 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix OOB read from short trigger BA firmware response The firmware response length is only checked against sizeof(*rsp) (20 bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read at buf + 20 without verifying the response contains it. This causes an out-of-bounds read of stale heap data, corrupting the BA session state. Add validation that the response includes the candidate data.
Title wifi: wcn36xx: fix OOB read from short trigger BA firmware response
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-28T06:48:49.637Z

Reserved: 2026-08-26T14:34:25.777Z

Link: CVE-2026-80635

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T08:16:48.400

Modified: 2026-08-28T08:16:48.400

Link: CVE-2026-80635

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.