1. Home
  2. Vulnerabilities
  3. CVE-2025-39864
0.0
NA
CVE-2025-39864
wifi: cfg80211: fix use-after-free in cmp_bss()
Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix use-after-free in cmp_bss() Following bss_free() quirk introduced in commit 776b3580178f ("cfg80211: track hidden SSID networks properly"), adjust cfg80211_update_known_bss() to free the last beacon frame elements only if they're not shared via the corresponding 'hidden_beacon_bss' pointer.

INFO

Published Date :

Sept. 19, 2025, 4:15 p.m.

Last Modified :

Sept. 19, 2025, 4:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-39864 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Resolve use-after-free by ensuring beacon frames are not freed if shared.
  • Apply the Linux kernel patch for cfg80211.
  • Ensure beacon frames are not freed when shared.
  • Update the kernel to include the fix.
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-2025-39864.

URL Resource
https://git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08
https://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef
https://git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d
https://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716
https://git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807
https://git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c
https://git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d
https://git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39864 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-2025-39864 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-2025-39864 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-39864 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.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 19, 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 in cmp_bss() Following bss_free() quirk introduced in commit 776b3580178f ("cfg80211: track hidden SSID networks properly"), adjust cfg80211_update_known_bss() to free the last beacon frame elements only if they're not shared via the corresponding 'hidden_beacon_bss' pointer.
    Added Reference https://git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08
    Added Reference https://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef
    Added Reference https://git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d
    Added Reference https://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716
    Added Reference https://git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807
    Added Reference https://git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c
    Added Reference https://git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d
    Added Reference https://git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.