CVE-2026-68471
wifi: ieee80211: validate MLE common info length
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ieee80211: validate MLE common info length ieee80211_mle_common_size() uses the first common-info octet as the common information length for all known MLE types. However, ieee80211_mle_size_ok() only validates that octet for Basic, Probe Request, and TDLS MLEs. Reconfiguration MLEs also skipped the length octet when calculating the minimum common size, and Priority Access MLEs skipped validation of the advertised common information length. Account for the Reconfiguration common-info length octet and validate the advertised common information length for all known MLE types. Keep unknown-type handling unchanged. [remove now misleading comment]
INFO
Published Date :
Aug. 15, 2026, 6:20 a.m.
Last Modified :
Aug. 17, 2026, 6:17 a.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 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Update Linux kernel to the latest version.
- Apply vendor-provided patches for the ieee80211 module.
- Validate MLE common information length across all types.
- Account for Reconfiguration common-info length.
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-2026-68471.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68471 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-2026-68471
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-2026-68471 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68471 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.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '90576bd6921a91eb038bffbb4b9467c2dc26aa1d', 'versionType': 'git'}, {'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '2b1589fd9a076727a73bfb39e96622a76415ad32', 'versionType': 'git'}, {'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '293baeae9b2434a3e432629d7720b5603db2d77e', 'versionType': 'git'}], 'programFiles': ['include/linux/ieee80211-eht.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['include/linux/ieee80211-eht.h'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '90576bd6921a91eb038bffbb4b9467c2dc26aa1d', 'versionType': 'git'}, {'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '2b1589fd9a076727a73bfb39e96622a76415ad32', 'versionType': 'git'}, {'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '293baeae9b2434a3e432629d7720b5603db2d77e', 'versionType': 'git'}], 'programFiles': ['include/linux/ieee80211-eht.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['include/linux/ieee80211-eht.h'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '90576bd6921a91eb038bffbb4b9467c2dc26aa1d', 'versionType': 'git'}, {'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '2b1589fd9a076727a73bfb39e96622a76415ad32', 'versionType': 'git'}, {'status': 'affected', 'version': '0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1', 'lessThan': '293baeae9b2434a3e432629d7720b5603db2d77e', 'versionType': 'git'}], 'programFiles': ['include/linux/ieee80211-eht.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['include/linux/ieee80211-eht.h'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: ieee80211: validate MLE common info length ieee80211_mle_common_size() uses the first common-info octet as the common information length for all known MLE types. However, ieee80211_mle_size_ok() only validates that octet for Basic, Probe Request, and TDLS MLEs. Reconfiguration MLEs also skipped the length octet when calculating the minimum common size, and Priority Access MLEs skipped validation of the advertised common information length. Account for the Reconfiguration common-info length octet and validate the advertised common information length for all known MLE types. Keep unknown-type handling unchanged. [remove now misleading comment] Added Reference https://git.kernel.org/stable/c/293baeae9b2434a3e432629d7720b5603db2d77e Added Reference https://git.kernel.org/stable/c/2b1589fd9a076727a73bfb39e96622a76415ad32 Added Reference https://git.kernel.org/stable/c/90576bd6921a91eb038bffbb4b9467c2dc26aa1d