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CVE-2025-39957
wifi: mac80211: increase scan_ies_len for S1G
Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: increase scan_ies_len for S1G Currently the S1G capability element is not taken into account for the scan_ies_len, which leads to a buffer length validation failure in ieee80211_prep_hw_scan() and subsequent WARN in __ieee80211_start_scan(). This prevents hw scanning from functioning. To fix ensure we accommodate for the S1G capability length.

INFO

Published Date :

Oct. 9, 2025, 10:15 a.m.

Last Modified :

Oct. 9, 2025, 3:50 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-39957 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
Update the Linux kernel to fix a buffer length validation issue affecting hardware scanning.
  • Update the Linux kernel to the latest version.
  • Apply the provided patch for mac80211.
  • Recompile and install the kernel.
  • Reboot the system to apply changes.
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-2025-39957.

URL Resource
https://git.kernel.org/stable/c/0dbad5f5549e54ac269cc04ce89f212892a98cab
https://git.kernel.org/stable/c/16c9244a62116fe148f6961753b68e7160799f97
https://git.kernel.org/stable/c/32adb020b0c32939da1322dcc87fc0ae2bc935d1
https://git.kernel.org/stable/c/7e2f3213e85eba00acb4cfe6d71647892d63c3a1
https://git.kernel.org/stable/c/93e063f15e17acb8cd6ac90c8f0802c2624e1a74
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39957 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-2025-39957 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-2025-39957 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-2025-39957 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

    Oct. 09, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: increase scan_ies_len for S1G Currently the S1G capability element is not taken into account for the scan_ies_len, which leads to a buffer length validation failure in ieee80211_prep_hw_scan() and subsequent WARN in __ieee80211_start_scan(). This prevents hw scanning from functioning. To fix ensure we accommodate for the S1G capability length.
    Added Reference https://git.kernel.org/stable/c/0dbad5f5549e54ac269cc04ce89f212892a98cab
    Added Reference https://git.kernel.org/stable/c/16c9244a62116fe148f6961753b68e7160799f97
    Added Reference https://git.kernel.org/stable/c/32adb020b0c32939da1322dcc87fc0ae2bc935d1
    Added Reference https://git.kernel.org/stable/c/7e2f3213e85eba00acb4cfe6d71647892d63c3a1
    Added Reference https://git.kernel.org/stable/c/93e063f15e17acb8cd6ac90c8f0802c2624e1a74
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.