CVE-2023-53321

wifi: mac80211_hwsim: drop short frames

HIGH
7.1
CVSS Score
Published: September 16, 2025 at 04:11 PM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: drop short frames While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address header to avoid accessing invalid memory if shorter frames are passed in.

Affected

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

v < 5.4.2575.11 ≤ v < 5.15.1335.16 ≤ v < 6.1.555.4 ≤ v < 5.10.1975.4 ≤ v < 5.15.1335.4 ≤ v < 5.4.2575.4 ≤ v < 6.1.555.4 ≤ v < 6.5.55.4 ≤ v < 6.65.5 ≤ v < 5.10.1976.2 ≤ v < 6.5.55.45d610af3e71a782fa28a1351b687da982d208ee
Vendor states this is fixed in 3beb97bed860d95b14ad23578ce8ddaea62023db (fixed)
Vendor states this is fixed in 672205c6f2d11978fcd7f0f336bb2c708e28874b (fixed)
Vendor states this is fixed in 89a41ed7f21476301659ebd25ccb48a60791c1a7 (fixed)
Vendor states this is fixed in b9a175e3b250b0dc6e152988040aa5014e98e61e (fixed)
Vendor states this is fixed in c64ee9dd335832d5e2ab0a8fc83a34ad4c729799 (fixed)
Vendor states this is fixed in fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6 (fixed)
Vendor states this is fixed in 5.10.197 (unaffected)
Vendor states this is fixed in 5.15.133 (unaffected)
Vendor states this is fixed in 5.4 (unaffected)
Vendor states this is fixed in 5.4.257 (unaffected)
Vendor states this is fixed in 6.1.55 (unaffected)
Vendor states this is fixed in 6.5.5 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3beb97bed860d95b14ad23578ce8ddaea62023db
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/672205c6f2d11978fcd7f0f336bb2c708e28874b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/89a41ed7f21476301659ebd25ccb48a60791c1a7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b9a175e3b250b0dc6e152988040aa5014e98e61e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c64ee9dd335832d5e2ab0a8fc83a34ad4c729799
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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