CVE-2026-68407
wifi: nl80211: free RNR data on MBSSID mismatch
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: free RNR data on MBSSID mismatch nl80211_parse_beacon() rejects EMA RNR data when there are fewer RNR entries than MBSSID entries. The rejected RNR allocation has not been attached to the beacon data yet, so free it before returning the error.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 10, 2026, 1:20 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-68407
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.
No affected product recoded yet
Solution
- Apply the patch for the nl80211 RNR data handling.
- Update the Linux kernel to the corrected version.
- Test the fix in your environment.
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-2026-68407.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68407 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-2026-68407
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-2026-68407 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68407 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.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 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': 'dbbb27e183b1568d5a907ace1cd144b0709ea52a', 'lessThan': 'fa9592ef7de11f8c7042315d9bc20e91a97f679e', 'versionType': 'git'}, {'status': 'affected', 'version': 'dbbb27e183b1568d5a907ace1cd144b0709ea52a', 'lessThan': '312c8b9d7836ef58e552619a8c19be08b04032bb', 'versionType': 'git'}, {'status': 'affected', 'version': 'dbbb27e183b1568d5a907ace1cd144b0709ea52a', 'lessThan': 'fb052a6e2fa866384d8edc237746583ec94c15af', 'versionType': 'git'}, {'status': 'affected', 'version': 'dbbb27e183b1568d5a907ace1cd144b0709ea52a', 'lessThan': '6f919f29e9b75793104709987131b8d910d7800a', 'versionType': 'git'}, {'status': 'affected', 'version': 'dbbb27e183b1568d5a907ace1cd144b0709ea52a', 'lessThan': '07a95ec2b54774201fdf4ef7ffb0ca2ab19ed29c', 'versionType': 'git'}, {'status': 'affected', 'version': '56189d7bc30531def6b999f27940ee43c6ff2569', 'versionType': 'git'}, {'status': 'affected', 'version': '6.1.160', 'lessThan': '6.2', 'versionType': 'semver'}], 'programFiles': ['net/wireless/nl80211.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.4'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/wireless/nl80211.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: free RNR data on MBSSID mismatch nl80211_parse_beacon() rejects EMA RNR data when there are fewer RNR entries than MBSSID entries. The rejected RNR allocation has not been attached to the beacon data yet, so free it before returning the error. Added Reference https://git.kernel.org/stable/c/07a95ec2b54774201fdf4ef7ffb0ca2ab19ed29c Added Reference https://git.kernel.org/stable/c/312c8b9d7836ef58e552619a8c19be08b04032bb Added Reference https://git.kernel.org/stable/c/6f919f29e9b75793104709987131b8d910d7800a Added Reference https://git.kernel.org/stable/c/fa9592ef7de11f8c7042315d9bc20e91a97f679e Added Reference https://git.kernel.org/stable/c/fb052a6e2fa866384d8edc237746583ec94c15af