CVE-2023-53384

wifi: mwifiex: avoid possible NULL skb pointer dereference

MEDIUM
5.5
CVSS Score
Published: September 18, 2025 at 01:33 PM UTC
Updated: June 17, 2026 at 06:45 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiex_handle_uap_rx_forward()', always check the value returned by 'skb_copy()' to avoid potential NULL pointer dereference in 'mwifiex_uap_queue_bridged_pkt()', and drop original skb in case of copying failure. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected

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

3.7 ≤ v < 4.14.3263.7 ≤ v < 4.19.2953.7 ≤ v < 5.10.1953.7 ≤ v < 5.15.1323.7 ≤ v < 5.4.2573.7 ≤ v < 6.1.533.7 ≤ v < 6.4.163.7 ≤ v < 6.5.33.7 ≤ v < 6.64.15 ≤ v < 4.19.2954.20 ≤ v < 5.4.2575.11 ≤ v < 5.15.1325.16 ≤ v < 6.1.535.5 ≤ v < 5.10.1956.2 ≤ v < 6.4.166.5 ≤ v < 6.5.33.7838e4f44929782a2163c7bc95a7cd2da5d8b47f9
Vendor states this is fixed in 0c57f9ad2c3ed43abb764b0247d610ff7fdb7a00 (fixed)
Vendor states this is fixed in 139d285e7695279f030dbb172e2d0245425c86c6 (fixed)
Vendor states this is fixed in 231086e6a36316b823654f4535653f22d6344420 (fixed)
Vendor states this is fixed in 35a7a1ce7c7d61664ee54f5239a1f120ab95a87e (fixed)
Vendor states this is fixed in 7e7197e4d6a1bc72a774590d8765909f898be1dc (fixed)
Vendor states this is fixed in bef85d58f7709896ed8426560ad117a73a37762f (fixed)
Vendor states this is fixed in c2509f7c37355e1f0bd5b7087815b845fd383723 (fixed)
Vendor states this is fixed in d155c5f64cefacdc6a9a26d40be53ee2903c28ff (fixed)
Vendor states this is fixed in d7fd24b8d1bb54c5bcf583139e11a5e651e0263c (fixed)
Vendor states this is fixed in 3.7 (unaffected)
Vendor states this is fixed in 4.14.326 (unaffected)
Vendor states this is fixed in 4.19.295 (unaffected)
Vendor states this is fixed in 5.10.195 (unaffected)
Vendor states this is fixed in 5.15.132 (unaffected)
Vendor states this is fixed in 5.4.257 (unaffected)
Vendor states this is fixed in 6.1.53 (unaffected)
Vendor states this is fixed in 6.4.16 (unaffected)
Vendor states this is fixed in 6.5.3 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card