High severity · published Jun 24, 2026
CVE-2026-56370
ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components Artifact
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage() when processing connected-components artifacts with invalid indices. Attackers can trigger access violations by specifying malformed connected-components definitions via CLI, causing denial of service or potential code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% 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; before 6.9.13-44 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56370
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56370
Vendor Advisory
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-pmpg-6pww-fg6q
Third Party Advisory
https://www.vulncheck.com/advisories/imagemagick-out-of-bounds-access-in-connectedcomponentsimage-via-connected-components-artifact
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