What is CVE-2026-55577?

CVE-2026-55577 is a medium-severity vulnerability in Imagemagick, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 5.9/10. Published 2026-07-01.

How severe is CVE-2026-55577?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Buffer overflow in Imagemagick

CVE-2026-55577

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-51 and 7.1.2-26, a heap buffer overflow occurs in the MVG decoder that could result in an out of bounds write when proc…

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Imagemagick — versions >= 7.0.1-0, < 7.1.2-26, < 6.9.13-51

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions
CWE-755 — Improper Handling of Exceptional Conditions
CWE-787 — Out-of-bounds Write

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-55577?: CVE-2026-55577 is a medium-severity vulnerability in Imagemagick, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 5.9/10. Published 2026-07-01.
How severe is CVE-2026-55577?: Medium severity. CVSS v3 base score is 5.9 out of 10.