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9.8
CRITICAL CVSS 3.1
CVE-2026-72226
batman-adv: tt: prevent TVLV OOB check overflow
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: prevent TVLV OOB check overflow A TT unicast TVLV contains the number of VLANs stored in it. This number is an u16 and gets multiplied by the size of the struct batadv_tvlv_tt_vlan_data (8 bytes). The size can therefore overflow the u16 used to store the tt_vlan_len. All additional safety checks to prevent out-of-bounds access of the TVLV buffer are invalid due to this overflow. Using size_t prevents this overflow and ensures that the safety checks compare against the actual buffer requirements.

Details
INFO

Published Date :

Aug. 15, 2026, 6:21 a.m.

Last Modified :

Aug. 17, 2026, 6:18 a.m.

Remotely Exploit :

Yes !

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-72226 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
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Prevent buffer overflow by using size_t for length calculations.
  • Update the Linux kernel to a version with the fix.
  • Verify TVLV buffer handling logic.
References
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-2026-72226.

URL Resource
https://git.kernel.org/stable/c/0de12a4c4847f571d82a9cd96bc633eded41d7c6
https://git.kernel.org/stable/c/1898273c5dc8148267ef9f97cd2517a2822350e7
https://git.kernel.org/stable/c/3256c05d5a9db34346eaf20f52dddde984852d77
https://git.kernel.org/stable/c/604bd5042fbcd1ab9f7cd98fd847ec017aeede8a
https://git.kernel.org/stable/c/6222b443686525cb5a9b6a9cecf23b2e2ab23e2a
https://git.kernel.org/stable/c/7319c0794f91be2734aac695794e7203606b49f8
https://git.kernel.org/stable/c/7a581d9aaba8c82bd6177fa36b2588eea77f6e2b
https://git.kernel.org/stable/c/d6ff4764ff784ede25f5c83a6f5883a74c93a5ea
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72226 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-2026-72226 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-2026-72226 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-2026-72226 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:N/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': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '0de12a4c4847f571d82a9cd96bc633eded41d7c6', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'd6ff4764ff784ede25f5c83a6f5883a74c93a5ea', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '1898273c5dc8148267ef9f97cd2517a2822350e7', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '604bd5042fbcd1ab9f7cd98fd847ec017aeede8a', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '7319c0794f91be2734aac695794e7203606b49f8', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '3256c05d5a9db34346eaf20f52dddde984852d77', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '6222b443686525cb5a9b6a9cecf23b2e2ab23e2a', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '7a581d9aaba8c82bd6177fa36b2588eea77f6e2b', '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': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'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-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/batman-adv/translation-table.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '0de12a4c4847f571d82a9cd96bc633eded41d7c6', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'd6ff4764ff784ede25f5c83a6f5883a74c93a5ea', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '1898273c5dc8148267ef9f97cd2517a2822350e7', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '604bd5042fbcd1ab9f7cd98fd847ec017aeede8a', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '7319c0794f91be2734aac695794e7203606b49f8', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '3256c05d5a9db34346eaf20f52dddde984852d77', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '6222b443686525cb5a9b6a9cecf23b2e2ab23e2a', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '7a581d9aaba8c82bd6177fa36b2588eea77f6e2b', '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': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'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': ['net/batman-adv/translation-table.c'], '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': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '0de12a4c4847f571d82a9cd96bc633eded41d7c6', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': 'd6ff4764ff784ede25f5c83a6f5883a74c93a5ea', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '1898273c5dc8148267ef9f97cd2517a2822350e7', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '604bd5042fbcd1ab9f7cd98fd847ec017aeede8a', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '7319c0794f91be2734aac695794e7203606b49f8', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '3256c05d5a9db34346eaf20f52dddde984852d77', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '6222b443686525cb5a9b6a9cecf23b2e2ab23e2a', 'versionType': 'git'}, {'status': 'affected', 'version': '7ea7b4a142758deaf46c1af0ca9ceca6dd55138b', 'lessThan': '7a581d9aaba8c82bd6177fa36b2588eea77f6e2b', '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': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'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-rc3', '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: prevent TVLV OOB check overflow A TT unicast TVLV contains the number of VLANs stored in it. This number is an u16 and gets multiplied by the size of the struct batadv_tvlv_tt_vlan_data (8 bytes). The size can therefore overflow the u16 used to store the tt_vlan_len. All additional safety checks to prevent out-of-bounds access of the TVLV buffer are invalid due to this overflow. Using size_t prevents this overflow and ensures that the safety checks compare against the actual buffer requirements.
    Added Reference https://git.kernel.org/stable/c/0de12a4c4847f571d82a9cd96bc633eded41d7c6
    Added Reference https://git.kernel.org/stable/c/1898273c5dc8148267ef9f97cd2517a2822350e7
    Added Reference https://git.kernel.org/stable/c/3256c05d5a9db34346eaf20f52dddde984852d77
    Added Reference https://git.kernel.org/stable/c/604bd5042fbcd1ab9f7cd98fd847ec017aeede8a
    Added Reference https://git.kernel.org/stable/c/6222b443686525cb5a9b6a9cecf23b2e2ab23e2a
    Added Reference https://git.kernel.org/stable/c/7319c0794f91be2734aac695794e7203606b49f8
    Added Reference https://git.kernel.org/stable/c/7a581d9aaba8c82bd6177fa36b2588eea77f6e2b
    Added Reference https://git.kernel.org/stable/c/d6ff4764ff784ede25f5c83a6f5883a74c93a5ea
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.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact