EUVD-2026-44627
GHSA-xqmc-7954-658r
Severity by source
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
Local file processing vector (AV:L), no attacker privileges needed, user must process a malicious file (UI:R), impact is availability only.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
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
Lifecycle Timeline
3DescriptionCVE.org
ImageMagick through 7.1.2-18 contains a memory leak vulnerability in the ASHLAR coder when an action fails. Attackers can trigger failed actions to exhaust memory resources and cause denial of service.
AnalysisAI
Memory exhaustion denial of service in ImageMagick through 7.1.2-18 arises from the ASHLAR coder failing to release a temporary image object when an internal action fails, allowing an attacker who can supply malicious ASHLAR files to a processing pipeline to cumulatively exhaust process memory. The CVSS 4.0 vector (AV:L/UI:P) confirms this is a local-vector attack requiring passive user or pipeline interaction to process the crafted file, not a remote unauthenticated scenario. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a user or automated process actively processes one or more attacker-supplied ASHLAR-format image files using ImageMagick version 7.1.2-18 or earlier, and that the attacker can craft files that cause an action failure inside the ASHLAR coder. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 4.8 accurately reflects a constrained but real risk: AV:L indicates the attack requires local file supply (or a process that ingests locally-presented files), UI:P indicates that a user or automated pipeline must passively process the malicious file, and VA:L indicates a low availability impact on the vulnerable system rather than an immediate crash. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker submits a series of specially crafted ASHLAR-format image files to a web application or batch processing pipeline backed by an unpatched ImageMagick installation, each file engineered to trigger an action failure within the ASHLAR coder. Each failed action leaks one temporary image object; after a sufficient number of submissions the process exhausts available memory, degrading or crashing the service. … |
| Remediation | For .NET users, upgrade all affected Magick.NET NuGet packages to version 14.11.1 or later: Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU, Magick.NET-Q16-HDRI-OpenMP-arm64, and Magick.NET-Q16-HDRI-arm64 are all fixed at 14.11.1, as confirmed by the GHSA advisory at https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-6p22-q7w5-33pg. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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