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CVE-2026-23060

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD.

Published Feb 4, 2026CWE-476EPSS 0.15%

Overview

CVE-2026-23060 is a medium-severity vulnerability. It was published on February 4, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec

authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than

the minimum expected length, crypto_authenc_esn_decrypt() can advance past

the end of the destination scatterlist and trigger a NULL pointer dereference

in scatterwalk_map_and_copy(), leading to a kernel panic (DoS).

Add a minimum AAD length check to fail fast on invalid inputs.

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/161bdc90fce25bd9890adc67fa1c8563a7acbf40Refgit.kernel.org/stable/c/2397e9264676be7794f8f7f1e9763d90bd3c7335Refgit.kernel.org/stable/c/767e8349f7e929b7dd95c08f0b4cb353459b365eRefgit.kernel.org/stable/c/9532ff0d0e90ff78a214299f594ab9bac81defe4Refgit.kernel.org/stable/c/b0a9609283a5c852addb513dafa655c61eebc1efRefgit.kernel.org/stable/c/df22c9a65e9a9daa368a72fed596af9d7d5876bbRefgit.kernel.org/stable/c/fee86edf5803f1d1f19e3b4f2dacac241bddfa48Refcert-portal.siemens.com/productcert/html/ssa-019113.html

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23060?

CVE-2026-23060 is a medium-severity vulnerability. It was published on February 4, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-23060?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-23060?

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-2026-23060?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23060 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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