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Description

ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory.

PUBLISHED Reserved 2026-06-21 | Published 2026-07-10 | Updated 2026-07-10 | Assigner VulnCheck




MEDIUM: 6.3CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

Use After Free

Product status

Default status
unaffected

Any version before 7.1.2-15
affected

7.1.2-15 (semver)
unaffected

Default status
unaffected

Any version before 6.9.13-40
affected

6.9.13-40 (semver)
unaffected

Credits

zerojackyi reporter

References

github.com/...Magick/security/advisories/GHSA-3j4x-rwrx-xxj9 (GitHub Security Advisory (GHSA-3j4x-rwrx-xxj9)) vendor-advisory

www.vulncheck.com/...ick-use-after-free-write-in-pdb-decoder (VulnCheck Advisory: ImageMagick - Use-After-Free Write in PDB Decoder) third-party-advisory

cve.org (CVE-2026-56373)

nvd.nist.gov (CVE-2026-56373)

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