CVE-2023-53153

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

15/09/2025

Last modified:

24/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Fix use after free for wext Key information in wext.connect is not reset on (re)connect and can hold data from a previous connection. Reset key data to avoid that drivers or mac80211 incorrectly detect a WEP connection request and access the freed or already reused memory. Additionally optimize cfg80211_sme_connect() and avoid an useless schedule of conn_work.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.32 (including)	4.14.308 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.276 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.235 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.173 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.99 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.16 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.2.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-53153

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools