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CVE-2026-72231

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid request storms during pending request batadv_send_tt_request() allocates a tt_req_node when none exists f…

Published Aug 15, 2026EPSS 0.68%

Overview

CVE-2026-72231 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

batman-adv: tt: avoid request storms during pending request

batadv_send_tt_request() allocates a tt_req_node when none exists for the

destination originator node. This should prevent that a multiple TT

requests are send at the same time to an originator.

But if allocation of the send buffer failed, this request must be cleaned

up again. But indicator for such a failure is "ret == false". But the

actual implementation is checking for "ret == true".

The check must be inverted to not loose the information about the TT

request directly after it was attempted to be sent out. This should avoid

potential request storms.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/067e413eec2e63c2996909ef55214b3a0eda0be7Refgit.kernel.org/stable/c/21c44a6895f41df811d1c91d10eea194dda2b345Refgit.kernel.org/stable/c/27c7d40008231ae4140d35501b60087a9de2d2c3Refgit.kernel.org/stable/c/5e46c76d9a5062212c4c5f642a5549fd9c057f8aRefgit.kernel.org/stable/c/6055695ea40c64a47e00742c12c99b1a33b4daedRefgit.kernel.org/stable/c/6a65ac8a81e903bb4b555c1d13532f5cb0167a4aRefgit.kernel.org/stable/c/716f434eb35869e130424331584a91fbb729b9bdRefgit.kernel.org/stable/c/aba1cf21954e64c36afb966b754adad2b0b8aa48

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72231?

CVE-2026-72231 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-72231?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-72231?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-72231?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72231 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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