CVE-2026-93281
wifi: rtw89: fix HE extended capability length check
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix HE extended capability length check rtw89_mac_check_he_obss_narrow_bw_ru_iter() reads extended capability byte 10, but rejects only datalen values below 10. Byte 10 requires at least 11 bytes. Require datalen >= 11 before reading data[10].
INFO
Published Date :
Sept. 24, 2026, 4:17 p.m.
Last Modified :
Sept. 24, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Validate datalen is at least 11 before reading data[10].
- Apply the latest kernel patches for rtw89 driver.
- Update the Linux kernel to a secure version.
- Test the fix to confirm vulnerability closure.
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-2026-93281.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-93281 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-2026-93281
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-2026-93281 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-93281 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. 24, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix HE extended capability length check rtw89_mac_check_he_obss_narrow_bw_ru_iter() reads extended capability byte 10, but rejects only datalen values below 10. Byte 10 requires at least 11 bytes. Require datalen >= 11 before reading data[10]. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/93xxx/CVE-2026-93281.json">CVE-2026-93281</a> Added Reference https://git.kernel.org/stable/c/2aba608a86e9b099c9af2ea70b620552dee2b628 Added Reference https://git.kernel.org/stable/c/655c4401c18d735dbaf2cc172ff4f626b3a896a0 Added Reference https://git.kernel.org/stable/c/bddbd1de765bf6ddc0473ad683910eb3a2a92a43 Added Reference https://git.kernel.org/stable/c/eddf53f1edb0cf7f302bd15cdb47cca90948c205 Added Reference https://git.kernel.org/stable/c/f132fc01b359a0f7d81fe13d769ea4e7c4baa66e Added Reference https://git.kernel.org/stable/c/f2a01deff7d0d5cc3dcbf2358dac113979303c8e