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CVE-2026-89825

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: fix firmware control interface bounds checks panthor_init_cs_iface() and panthor_init_csg_iface() validate firmwar…

Published Sep 16, 2026EPSS 0.18%

Overview

CVE-2026-89825 is a high-severity vulnerability. It was published on September 16, 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:

drm/panthor: fix firmware control interface bounds checks

panthor_init_cs_iface() and panthor_init_csg_iface() validate firmware

control interface offsets with 32-bit arithmetic and the size of the host

wrapper structures. The offsets are derived from firmware-provided strides,

so the arithmetic can wrap before the bounds check, and the host wrapper

size is not the size of the firmware control interface being mapped.

Use 64-bit arithmetic for the computed offsets and validate against the

actual firmware control interface structure sizes with subtraction-based

bounds checks. Also validate that the shared section is large enough for

the global control interface before using it.

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/33ae55809aee9b4dca1d00cdee35b527f2bf8626Refgit.kernel.org/stable/c/3e5c7cddc0073eef6f9bb373189b11a969f1f6f6Refgit.kernel.org/stable/c/6a47f9fd2d970674ed9dedc52fc7ab76fd015785Refgit.kernel.org/stable/c/80c9528661c774f899281c9a72011208ff39929e

How CyberStrike helps

Frequently asked questions

What is CVE-2026-89825?

CVE-2026-89825 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-89825?

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-2026-89825?

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-2026-89825?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-89825 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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