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ImageMagick CVE-2026-56363

| EUVDEUVD-2026-40446 MEDIUM
Integer Overflow or Wraparound (CWE-190)
2026-06-30 VulnCheck GHSA-xgp5-592f-4xcv
Denial Of Service Integer Overflow Red Hat Imagemagick Suse
4.8
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
4.8 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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
vuln.today AI
3.3 LOW

Local attack vector with required user interaction to process the crafted file; no privileges needed to supply the file; impact is strictly an application crash with no confidentiality or integrity effect.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SUSE
3.3 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Red Hat
3.3 LOW
qualitative

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

2
Patch available
Jul 01, 2026 - 02:16 EUVD
Analysis Generated
Jun 30, 2026 - 23:35 vuln.today

DescriptionCVE.org

ImageMagick before 7.1.2-22 contains a division by zero vulnerability in binomial kernel processing that allows attackers to cause denial of service. An attacker can supply a large binomial kernel value causing integer overflow, resulting in division by zero and application crash.

AnalysisAI

Division by zero in ImageMagick's binomial kernel processing path, affecting all versions before 7.1.2-22, allows an attacker to crash the application by supplying a crafted image with an oversized binomial kernel value. The integer overflow corrupts the kernel size calculation, and a subsequent division by the resulting zero value causes an unhandled exception and process termination. No public exploit code has been identified and the vulnerability is not listed in CISA KEV; however, automated image-processing pipelines that accept untrusted uploads are at elevated practical risk despite the local-vector CVSS rating.

Technical ContextAI

ImageMagick is an open-source image processing library and CLI suite used extensively in web stacks, media pipelines, and Linux distributions. The vulnerable code path involves binomial kernel processing - a convolution kernel used in blurring and morphological operations - where the kernel size is derived from a user-controlled value embedded in the image. CWE-190 (Integer Overflow or Wraparound) is the root cause: when the supplied kernel value is sufficiently large, the integer representing the computed kernel size wraps around to zero or a near-zero value. A division operation that uses this corrupted size then produces a division-by-zero condition, triggering an unhandled exception and application crash. The affected product is identified by CPE cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*, covering all platform variants of the library before the fixed release.

RemediationAI

The primary remediation is to upgrade ImageMagick to version 7.1.2-22 or later, which resolves the integer overflow in binomial kernel size computation per the vendor security advisory at https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vf33-6r7x-66xx. For environments where immediate patching is not feasible, restrict the set of image files processed by ImageMagick to those from verified trusted sources only - this can be achieved by blocking user-supplied or externally sourced images from reaching the ImageMagick processing pipeline via application-layer input validation or access controls. This workaround reduces functional capability (preventing processing of externally sourced content) but eliminates exposure to crafted inputs. Organizations running ImageMagick in automated upload or media processing pipelines should treat patching as a priority, given that the theoretical local-access constraint does not apply when the application itself fetches or accepts arbitrary image data.

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Same weakness CWE-190 – Integer Overflow or Wraparound

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Same technique Denial Of Service

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Fixed

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CVE-2026-56363 vulnerability details – vuln.today
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