CVE-2023-53153
wifi: cfg80211: Fix use after free for wext
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.
INFO
Published Date :
Sept. 15, 2025, 2:15 p.m.
Last Modified :
Nov. 24, 2025, 9:01 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Apply the Linux kernel patch.
- Ensure key data is reset on reconnect.
- Optimize cfg80211_sme_connect.
- Avoid unnecessary conn_work schedules.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-53153.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53153 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-53153
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-53153 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-53153 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 24, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.235 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.173 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.99 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.2.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.32 up to (excluding) 4.14.308 Added Reference Type kernel.org: https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 15, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b Added Reference https://git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747 Added Reference https://git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7 Added Reference https://git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9 Added Reference https://git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2 Added Reference https://git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6 Added Reference https://git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7 Added Reference https://git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4