CVE-2026-23370 Linux CVE debrief

Who should care

Linux kernel maintainers, Linux distribution vendors, and users of Linux kernel versions 5.11.1 to 5.15.203, 5.16 to 6.1.167, 6.2 to 6.6.130, 6.7 to 6.12.77, 6.13 to 6.18.17, 6.19 to 6.19.7, and 7.0 rc1 to rc7 should review and apply patches to prevent potential credential leaks.

Technical summary

The vulnerability exists in the platform/x86: dell-wmi-sysman component of the Linux kernel. The set_new_password() function was hex dumping the entire buffer, which contained plaintext password data. This was fixed by removing the hex dump. Affected versions include 5.11.1 to 5.15.203, 5.16 to 6.1.167, 6.2 to 6.6.130, 6.7 to 6.12.77, 6.13 to 6.18.17, 6.19 to 6.19.7, and 7.0 rc1 to rc7. The fix prevents potential credential leaks by removing the hex dump of plaintext password data.

Defensive priority

Apply patches to prevent potential credential leaks and review compensating controls for exposed systems.

Recommended defensive actions

• Review and apply patches from Linux kernel maintainers
• Update Linux kernel to a patched version
• Monitor system logs for potential exploitation attempts
• Verify affected product deployments exist in managed environments
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-03-25T11:16:36.527Z and was last modified on 2026-07-14T13:18:31.380Z. The NVD entry is currently Modified. This vulnerability affects Linux kernel versions 5.11.1 to 5.15.203, 5.16 to 6.1.167, 6.2 to 6.6.130, 6.7 to 6.12.77, 6.13 to 6.18.17, 6.19 to 6.19.7, and 7.0 rc1 to rc7. There is limited information available about the vulnerability, and defenders should verify the affected scope and apply patches accordingly.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.