Use After Free in Imagemagick
CVE-2026-56373
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (12.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Imagemagick — versions 0, 7.1.2-15, 6.9.13-40
Weakness classification (CWE)
References
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-3j4x-rwrx-xxj9 (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/imagemagick-use-after-free-write-in-pdb-decoder (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-56373?
- CVE-2026-56373 is a low-severity vulnerability in Imagemagick, classified under Use After Free. CVSS score: 3.7/10. Published 2026-07-10.
- How severe is CVE-2026-56373?
- Low severity. CVSS v3 base score is 3.7 out of 10.