High severity · published Jul 8, 2026
CVE-2026-56374
ImageMagick - Heap Buffer Overflow in FTXT Encoder via format Parameter
7.1
CVSS
0.2%
EPSS
No
On KEV
Description
ImageMagick before 7.1.2-19 contains a heap buffer overflow vulnerability in the FTXT encoder due to missing boundary checks when parsing ftxt:format. Remote attackers can trigger an out of bounds read by crafting malicious FTXT image files to cause denial of service or information disclosure.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IM
ImageMagick · ImageMagick
before 7.1.2-19 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56374
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56374
Vendor Advisory
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-w54j-7wpm-crhj
Third Party Advisory
https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-in-ftxt-encoder-via-format-parameter
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9.8
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