Description
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 lacks proper synchronization when the security policy is accessed, so simultaneous reads and writes of the policy by multiple threads trigger a race condition that causes a heap buffer over-write. An attacker able to induce concurrent security policy access can crash the application, causing a denial of service.
Affected products
imagemagick: imagemagick
References4
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8x3… Vendor Advisory
- github.com/ImageMagick/ImageMagick/commit/12db6f04e895deae4537e… Patch
- github.com/ImageMagick/ImageMagick6/commit/9ddc71abea5cbe7d1816… Patch
- www.vulncheck.com/advisories/imagemagick-before-6.9.13-57-and-7… PatchThird Party Advisory
Metrics
- CVSS 3.1
-
2.5
LOW
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L - CVSS 4.0
-
2.0
LOW
Score source: CNA
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 0 · as of 11 November 2026
- CWE
- CWE-362
Could this be exploited in your environment?
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