Review reviewHigh

CVE-2023-53257

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check S1G action frame size Before checking the action code, check that it even exists in the frame.

CVSS: 7.8
EPSS: 0.19%
CISA KEV: Not listed
Published: 2025.09.16

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.19%

Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check S1G action frame size Before checking the action code, check that it even exists in the frame.

Affected product and versions

Product: Linux Linux, linux kernel
Affected versions: >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < fedd9377dd9c71a950d432fbe1628eebfbed70a1, >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 7ae7a1378a119780c8c17a6b5fc03011c3bb7029, >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 5e030a2509be72b452b6f4a800786d43229414db, >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 19e4a47ee74718a22e963e8a647c8c3bfe8bb05c, >= 5.15, < 5.15.133, >= 5.16 < 6.1.55, >= 6.2 < 6.5.5
Fixed versions: 5.15.133, 6.1.55, 6.5.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux Linux, linux kernel and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
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:H/A:H
CWE: Not available