CVE-2025-62490

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{"affected": [{"affectedData": [{"collectionURL": "https://bellard.org/quickjs/", "defaultStatus": "unaffected", "packageName": "js_print_object", "product": "QuickJS", "vendor": "QuickJS", "versions": [{"lessThan": "2025-09-13", "status": "affected", "version": "2025-04-26", "versionType": "date"}]}], "source": "cve-coordination@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:quickjs_project:quickjs:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB84E2DC-74EA-4956-9521-C2B652B8E8C2", "versionEndExcluding": "2025-09-13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In quickjs, in js_print_object, when printing an array, the function first fetches the array length and then loops over it.\u00a0The issue is, printing a value is not side-effect free. An attacker-defined callback could run during js_print_value, during which the array could get resized and len1\u00a0become out of bounds. This results in a use-after-free.A second instance occurs in the same function during printing of a map or set objects. The code iterates over ms->records\u00a0list, but once again, elements could be removed from the list during js_print_value\u00a0call."}, {"lang": "es", "value": "En quickjs, en js_print_object, al imprimir un array, la funci\u00f3n primero obtiene la longitud del array y luego itera sobre \u00e9l. El problema es que imprimir un valor no est\u00e1 libre de efectos secundarios. Una devoluci\u00f3n de llamada definida por el atacante podr\u00eda ejecutarse durante js_print_value, durante la cual el array podr\u00eda redimensionarse y len1 quedar fuera de los l\u00edmites. Esto resulta en un uso despu\u00e9s de liberaci\u00f3n. Una segunda instancia ocurre en la misma funci\u00f3n durante la impresi\u00f3n de objetos de tipo map o set. El c\u00f3digo itera sobre la lista ms -> records, pero una vez m\u00e1s, los elementos podr\u00edan eliminarse de la lista durante la llamada a js_print_value."}], "id": "CVE-2025-62490", "lastModified": "2026-10-19T16:10:00.260", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cve-coordination@google.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-62490", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-10-16T18:07:46.371137Z", "version": "2.0.3"}}]}, "published": "2025-10-16T16:15:39.270", "references": [{"source": "cve-coordination@google.com", "tags": ["Release Notes"], "url": "https://bellard.org/quickjs/Changelog"}, {"source": "cve-coordination@google.com", "tags": ["Exploit", "Issue Tracking"], "url": "https://issuetracker.google.com/434196651"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "cve-coordination@google.com", "type": "Secondary"}]}

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{"created": "2025-10-21T09:40:02.438335+00:00", "updated": "2025-10-21T09:40:02.438362+00:00", "vendors": ["quickjs-ng", "quickjs-ng$PRODUCT$quickjs"]}