EUVD-2026-43189
GHSA-fhrj-r6ww-vq67
Severity by source
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/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 vector with high complexity to trigger allocator failure; no privileges needed; only low availability impact with no confidentiality or integrity effect.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/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
2DescriptionCVE.org
ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the VIFF encoder when memory allocation fails. Attackers can trigger allocation failures by processing specially crafted VIFF images to exhaust available memory and cause denial of service.
AnalysisAI
Memory exhaustion denial of service in ImageMagick before 7.1.2-26 results from an unreleased memory leak in the VIFF image encoder triggered by failed memory allocation during image processing. Locally-positioned attackers without privileges can supply specially crafted VIFF images to repeatedly trigger this leak, gradually exhausting system memory. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target system must be running ImageMagick in a version earlier than 7.1.2-26 and must invoke the VIFF encoder - meaning it must process VIFF-format images, either directly via CLI (e.g., 'convert input.viff output.png') or through an application that passes VIFF images to the ImageMagick library. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N) yields a score of 2.1, placing this firmly in the lowest severity tier. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with local file submission access to a system running a vulnerable ImageMagick version crafts a VIFF image with parameters engineered to push the internal allocator toward failure during encoding, inducing the memory leak code path. By submitting batches of such images - for example, through a web application that accepts VIFF uploads and processes them server-side - the attacker accumulates leaked memory across successive ImageMagick invocations until available memory is exhausted and the host process or container becomes unresponsive. … |
| Remediation | Vendor-released patch: ImageMagick 7.1.2-26. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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