CVE-2026-53257

wifi: cfg80211: enforce HE/EHT cap/oper consistency

MEDIUM
5.5
CVSS Score
Published: June 25, 2026 at 08:39 AM UTC
Updated: October 15, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: enforce HE/EHT cap/oper consistency Xiang Mei reports that mac80211 could crash if eht_cap is set but eht_oper isn't. Rather than fixing that for the individual user(s), enforce that both HE/EHT have consistent elements.

Affected

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

6.16 ≤ v < 7.0.1322c64f37e1d4e757b0073a72f1439c2c3509c5cb7.17.1 rc17.1 rc27.1 rc37.1 rc47.1 rc57.1 rc6
Vendor states this is fixed in 0f5e9ddd7e8e7758771a63cdd498a2007dc8da7a (fixed)
Vendor states this is fixed in cb9959ab5f99611d27a06586add84811fe8102dc (fixed)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 7.0.13 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

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

CVSS

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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