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CVE-2026-8461

8.8 · HIGH

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

Published Jun 18, 2026CWE-787EPSS 1.03%

Overview

CVE-2026-8461 is a high-severity vulnerability. It was published on June 18, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

This vulnerability is associated with the file libavcodec/magicyuv.C.

This issue affects FFmpeg before version 8.1.2.

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

Refcode.ffmpeg.org/FFmpeg/FFmpeg/pulls/23159Refaccess.redhat.com/errata/RHSA-2026:43711Refaccess.redhat.com/security/cve/CVE-2026-8461Refbugzilla.redhat.com/show_bug.cgi?id=2490308Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8461.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-8461?

CVE-2026-8461 is a high-severity vulnerability. It was published on June 18, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-8461?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-8461?

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-2026-8461?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-8461 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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