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Review reviewHigh

CVE-2025-37973

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation Currently during the multi-link element defragmentation process, the multi-link element length added to the total IEs length when calculating the length of remaining IEs after the multi-link element in cfg80211_defrag_mle(). This could lead to out-of-bounds access if the multi-link element or its corresponding fragment elements are the last elements in the IEs buffer. To address this issue, correctly calculate the remaining IEs length by dedu...

CVSS
7.1
EPSS
0.22%
12.8% percentile
CISA KEV
Not listed
Published
2025.05.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.22%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation Currently during the multi-link element defragmentation process, the multi-link element length added to the total IEs length when calculating the length of remaining IEs after the multi-link element in cfg80211_defrag_mle(). This could lead to out-of-bounds access if the multi-link element or its corresponding fragment elements are the last elements in the IEs buffer. To address this issue, correctly calculate the remaining IEs length by dedu...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 < 73dde269a1a43e6b1aa92eba13ad2df58bfdd38e, >= 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 < 9423f6da825172b8dc60d4688ed3d147291c3be9, >= 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 < e1c6d0c6199bd5f4cfc7a66ae7032b6e805f904d, >= 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 < 023c1f2f0609218103cbcb48e0104b144d4a16dc, >= 6.5, >= 6.5 < 6.6.91, >= 6.7 < 6.12.29, >= 6.13 < 6.14.7, 6.15
Fixed versions
6.6.91, 6.12.29, 6.14.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125