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CVE-2026-43077

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Fix minimum RX size check for decryption The check for the minimum receive buffer size did not take the ta…

Published May 6, 2026EPSS 0.16%

Overview

CVE-2026-43077 is a medium-severity vulnerability. It was published on May 6, 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: algif_aead - Fix minimum RX size check for decryption

The check for the minimum receive buffer size did not take the

tag size into account during decryption. Fix this by adding the

required extra length.

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/1c76b5675119f694458293a2a81f40731c69bd32Refgit.kernel.org/stable/c/3afdc15d6173614d7d834517d9b65e7aa5a08548Refgit.kernel.org/stable/c/3d14bd48e3a77091cbce637a12c2ae31b4a1687cRefgit.kernel.org/stable/c/74a66fdb5282d89e348b00c42cfca3a936946d94Refgit.kernel.org/stable/c/78cea133daf721698876e56135049a96d39d610aRefgit.kernel.org/stable/c/af2fa2fbbced26129813274b8b3f7705f280e174Refgit.kernel.org/stable/c/e86ab1e5661386a874fbb8551f0c04b8e9f8ad22Refgit.kernel.org/stable/c/fd427dd84f224309afbcc2cb67c7bb770a01265c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43077?

CVE-2026-43077 is a medium-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43077?

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-2026-43077?

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-2026-43077?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43077 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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