Buffer overflow in Imagemagick
CVE-2026-105401
ImageMagick before 7.1.2-31 contains a heap buffer overflow vulnerability in the distributed pixel cache server that allows connecting clients to overwrite heap memory by sending crafted data. Attackers can connect to the distributed pixel cache server and transmit malicious data to trigger a heap buffer over-write that crashes the server, causing denial of service.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-4fq9-vrx7-gv92 (vendor-advisory)
- www.vulncheck.com/advisories/imagemagick-before-7.1.2-31-heap-buffer-overflow-i… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-105401?
- CVE-2026-105401 is a medium-severity vulnerability in Imagemagick, classified under Heap-based Buffer Overflow. CVSS score: 5.3/10. Published 2026-10-08.
- How severe is CVE-2026-105401?
- Medium severity. CVSS v3 base score is 5.3 out of 10.