{"id":"CVE-2026-56376","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-06-23T13:16:46.397","lastModified":"2026-10-29T21:17:25.727","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service."},{"lang":"es","value":"ImageMagick anterior a 7.1.2-15 y 6.9.13-40 contiene un uso después de liberación de pila en el codificador meta: cuando la asignación de memoria falla, se escribe un solo byte en un puntero obsoleto. Atacantes remotos pueden activarlo al procesar archivos de imagen especialmente manipulados, causando una denegación de servicio."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"ImageMagick","product":"ImageMagick","defaultStatus":"unaffected","versions":[{"version":"7.0.0","lessThan":"7.1.2-15","versionType":"semver","status":"affected"},{"version":"7.1.2-15","versionType":"semver","status":"unaffected"}]},{"vendor":"ImageMagick","product":"ImageMagick","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"6.9.13-40","versionType":"semver","status":"affected"},{"version":"6.9.13-40","versionType":"semver","status":"unaffected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/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","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":2.2,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","baseScore":3.3,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":1.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-23T13:06:03.212009Z","id":"CVE-2026-56376","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Secondary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*","versionEndExcluding":"6.9.13-40","matchCriteriaId":"C6F44A65-1733-4752-AAD0-BCCC7BDBC877"},{"vulnerable":true,"criteria":"cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0.0-0","versionEndExcluding":"7.1.2-15","matchCriteriaId":"6AFFD439-1068-4B6F-AE01-724AC62CDCEA"}]}]}],"references":[{"url":"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjm","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]},{"url":"https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coder","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]}]}