Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-23213

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: Disable MMIO access during SMU Mode 1 reset During Mode 1 reset, the ASIC undergoes a reset cycle and becomes tempo…

Published Feb 18, 2026EPSS 0.13%

Overview

CVE-2026-23213 is a medium-severity vulnerability. It was published on February 18, 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:

drm/amd/pm: Disable MMIO access during SMU Mode 1 reset

During Mode 1 reset, the ASIC undergoes a reset cycle and becomes

temporarily inaccessible via PCIe. Any attempt to access MMIO registers

during this window (e.g., from interrupt handlers or other driver threads)

can result in uncompleted PCIe transactions, leading to NMI panics or

system hangs.

To prevent this, set the `no_hw_access` flag to true immediately after

triggering the reset. This signals other driver components to skip

register accesses while the device is offline.

A memory barrier `smp_mb()` is added to ensure the flag update is

globally visible to all cores before the driver enters the sleep/wait

state.

(cherry picked from commit 7edb503fe4b6d67f47d8bb0dfafb8e699bb0f8a4)

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/0de604d0357d0d22cbf03af1077d174b641707b6Refgit.kernel.org/stable/c/c1853ebbec980d5c05d431bfd6ded73b1363fd00Refgit.kernel.org/stable/c/cd7ff7fd3e4b77f0b5a292e0926532eaa07c5162

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23213?

CVE-2026-23213 is a medium-severity vulnerability. It was published on February 18, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-23213?

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-2026-23213?

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-2026-23213?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23213 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.

Related MEDIUM CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999