CVE-2026-86425 ImageMagick CVE debrief

Who should care

Defenders responsible for ImageMagick installations, particularly those using PerlMagick, should assess exposure and prioritize patching to prevent potential denial of service attacks.

Why it matters

CVE-2026-86425 is a medium-severity vulnerability in ImageMagick's PerlMagick Layer method. Defenders should prioritize verifying ImageMagick versions and applying patches to prevent potential denial of service attacks.

• Denial of service attacks via crafted image inputs
• Potential for memory corruption and crashes

Technical summary

The Layer method of PerlMagick in ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability. An attacker can trigger memory access after deallocation by supplying a crafted list of images, resulting in a crash. This vulnerability has a CVSS score of 4.8 and a medium severity. Defenders should prioritize verifying ImageMagick versions and applying patches to prevent potential denial of service attacks. The vulnerability can be exploited through crafted image inputs, potentially leading to memory corruption and crashes.

Defensive priority

Defenders should prioritize verifying ImageMagick versions and applying patches to prevent potential denial of service attacks.

Recommended defensive actions

• Verify ImageMagick versions and apply patches
• Monitor for crafted image inputs
• Implement memory access controls
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions, retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its medium severity and potential for denial of service attacks. Additional information on affected versions and remediation is needed. The vulnerability is in the PerlMagick Layer method, and defenders should verify ImageMagick versions and apply patches. The CVE record was published on 2026-09-07T13:20:41.543Z and has not been modified since then. No additional information on exploitation or in-the-wild attacks is available.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.