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CVE-2026-63961

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: validate count before reading Status Update VDO A broken/malicious device can send the incorr…

Published Jul 19, 2026EPSS 0.22%

Overview

CVE-2026-63961 is a known-severity vulnerability. It was published on July 19, 2026.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: altmodes/displayport: validate count before reading Status Update VDO

A broken/malicious device can send the incorrect count for a status

update VDO, which will cause the kernel to read uninitialized stack data

and send it off elsewhere.

Fix this up by correctly verifying the count for the update object.

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/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02Refgit.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44cRefgit.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306Refgit.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bbRefgit.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faaRefgit.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60Refgit.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9bRefgit.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-63961?

CVE-2026-63961 is a known-severity vulnerability. It was published on July 19, 2026.

How severe is CVE-2026-63961?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-63961?

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-2026-63961?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-63961 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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