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CVE-2026-74444

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: validate DRAW_PRIMITIVES header size before division vmw_cmd_draw() computes maxnum = (header->size - sizeof(cmd-…

Published Aug 15, 2026EPSS 0.13%

Overview

CVE-2026-74444 is a high-severity vulnerability. It was published on August 15, 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/vmwgfx: validate DRAW_PRIMITIVES header size before division

vmw_cmd_draw() computes

maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl);

where header->size is u32 and is taken straight from the user-supplied

command stream. When header->size is less than sizeof(cmd->body) the

unsigned subtraction wraps to nearly 4 GiB, producing a huge maxnum.

Any user-controlled cmd->body.numVertexDecls then passes the bound and

the loop dereferences decl[i] far past the end of the kernel command

bounce buffer, producing an out-of-bounds read of kernel memory.

Reject undersized headers up front.

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/112c6ff29a56f3a22db4d5af869697aa07035ad6Refgit.kernel.org/stable/c/2666cddf0dd218aa9bd1f99db688d1b532eac21aRefgit.kernel.org/stable/c/85891d174707d8bddcec7a888fb4e1d17def34f3Refgit.kernel.org/stable/c/b89ca4bba820f79dde52af15ee139fe6e8bbc314Refgit.kernel.org/stable/c/bef30317fcb4c838a37bceb2fc76256eb6b975c1Refgit.kernel.org/stable/c/c77cf8edae2bd3a1599115301cc7c98d0c78e731Refgit.kernel.org/stable/c/dc0be7662b7b0ce28cb5eea864737793ed7b9e70Refgit.kernel.org/stable/c/fc0c02f510e41650df3479f96e257acf87d8a20a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74444?

CVE-2026-74444 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-74444?

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-2026-74444?

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-2026-74444?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74444 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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