CVE-2026-56373
ImageMagick - Use-After-Free Write in PDB Decoder
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jul 10, 2026
- Updated
- Oct 29, 2026
- Reserved
- Jun 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
ImageMagickImageMagick |
|
ImageMagickImageMagick |
|
References
- GitHub Security Advisory (GHSA-3j4x-rwrx-xxj9)vendor-advisory
- VulnCheck Advisory: ImageMagick - Use-After-Free Write in PDB Decoderthird-party-advisory
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