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CVE-2025-39849
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.

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-2025-39849 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
Add bounds checking to prevent memory corruption when handling SSID lengths.
  • Apply kernel patches that include bounds checking.
  • Update affected Linux kernel systems.
  • Verify SSID length handling in connection results.
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-2025-39849.

URL Resource
https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede
https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523
https://git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3
https://git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649
https://git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537f
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39849 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-2025-39849 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-2025-39849 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-2025-39849 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: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.
    Added Reference https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede
    Added Reference https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523
    Added Reference https://git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3
    Added Reference https://git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649
    Added Reference https://git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537f
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.