CVE-2026-64090
batman-adv: tt: avoid empty VLAN responses
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs") added checks to the local (direct) TT response code. But the response can also be done indirectly by another node using the global TT state. To avoid such inconsistency states reported in the original fix, also avoid sending empty VLANs for replies from the global TT state.
INFO
Published Date :
July 19, 2026, 4:17 p.m.
Last Modified :
July 19, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-64090
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
- Update the Linux kernel to the latest version.
- Apply the "batman-adv: tt: avoid empty VLAN responses" commit.
- Ensure consistent TT TLVLs are maintained.
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-2026-64090.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64090 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-2026-64090
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-2026-64090 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64090 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
Jul. 19, 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': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '1f467d9a095211d3f77e8ff1bee90e73ffe01c64', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '9a02c8fc963ddeecb5d8788be0740c1869fc54b7', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'ea4f757641430bcc8322772e161453c4db5ecb64', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '99f17d1cdb371cbd037975239b321f346d38f6d2', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'cfb30645280a2131e46cbd1b9a38cfd3ff893f12', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'b93ca6012712ecab2b551e120d7c95038d6a89e5', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'ab26e346322648f5c39de017d9723c9256284fce', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'fa1bd704940b5bcbc32c0b28db9167405c8ee5e0', 'versionType': 'git'}], 'programFiles': ['net/batman-adv/translation-table.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.259', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.93', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.34', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.11', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/batman-adv/translation-table.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs") added checks to the local (direct) TT response code. But the response can also be done indirectly by another node using the global TT state. To avoid such inconsistency states reported in the original fix, also avoid sending empty VLANs for replies from the global TT state. Added Reference https://git.kernel.org/stable/c/1f467d9a095211d3f77e8ff1bee90e73ffe01c64 Added Reference https://git.kernel.org/stable/c/99f17d1cdb371cbd037975239b321f346d38f6d2 Added Reference https://git.kernel.org/stable/c/9a02c8fc963ddeecb5d8788be0740c1869fc54b7 Added Reference https://git.kernel.org/stable/c/ab26e346322648f5c39de017d9723c9256284fce Added Reference https://git.kernel.org/stable/c/b93ca6012712ecab2b551e120d7c95038d6a89e5 Added Reference https://git.kernel.org/stable/c/cfb30645280a2131e46cbd1b9a38cfd3ff893f12 Added Reference https://git.kernel.org/stable/c/ea4f757641430bcc8322772e161453c4db5ecb64 Added Reference https://git.kernel.org/stable/c/fa1bd704940b5bcbc32c0b28db9167405c8ee5e0