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CVE-2026-31693

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: cifs: some missing initializations on replay In several places in the code, we have a label to signify the start of the code wh…

Published Apr 30, 2026CWE-908EPSS 0.18%

Overview

CVE-2026-31693 is a high-severity vulnerability. It was published on April 30, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

cifs: some missing initializations on replay

In several places in the code, we have a label to signify

the start of the code where a request can be replayed if

necessary. However, some of these places were missing the

necessary reinitializations of certain local variables

before replay.

This change makes sure that these variables get initialized

after the label.

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/14f66f44646333d2bfd7ece36585874fd72f8286Refgit.kernel.org/stable/c/1d731e512134495e0ef490ade0e4d91dc0d515ecRefgit.kernel.org/stable/c/7c9ce68192eef14c777cb6ce17155d2eb2431aeaRefgit.kernel.org/stable/c/c854ab481ece4b3e5f4c2e8b22824f015ff874a5Refgit.kernel.org/stable/c/c99e160938b627f6f28edee930e8abc157e84386

How CyberStrike helps

Frequently asked questions

What is CVE-2026-31693?

CVE-2026-31693 is a high-severity vulnerability. It was published on April 30, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-31693?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-31693?

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-2026-31693?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-31693 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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