CVE-2021-24045

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{"affected": [{"affectedData": [{"product": "Hermes", "vendor": "Facebook", "versions": [{"lessThan": "unspecified", "status": "unaffected", "version": "0.10.0", "versionType": "custom"}, {"lessThan": "0.10.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "cve-assign@fb.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A6510A9-5178-4595-8EF6-622998CDB1F3", "versionEndExcluding": "0.10.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A type confusion vulnerability could be triggered when resolving the \"typeof\" unary operator in Facebook Hermes prior to v0.10.0. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected."}, {"lang": "es", "value": "Una vulnerabilidad de confusi\u00f3n de tipo podr\u00eda ser desencadenada al resolver el operador unario \"typeof\" en Facebook Hermes versiones anteriores a v0.10.0. Tenga en cuenta que esto s\u00f3lo es explotable si la aplicaci\u00f3n que usa Hermes permite una evaluaci\u00f3n de JavaScript no confiable. Por lo tanto, la mayor\u00eda de las aplicaciones React Native no est\u00e1n afectadas"}], "id": "CVE-2021-24045", "lastModified": "2026-06-17T03:39:12.893", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-13T21:15:08.923", "references": [{"source": "cve-assign@fb.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/facebook/hermes/commit/55e1b2343f4deb1a1b5726cfe1e23b2068217ff2"}, {"source": "cve-assign@fb.com", "tags": ["Vendor Advisory"], "url": "https://www.facebook.com/security/advisories/cve-2021-24045"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/facebook/hermes/commit/55e1b2343f4deb1a1b5726cfe1e23b2068217ff2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.facebook.com/security/advisories/cve-2021-24045"}], "sourceIdentifier": "cve-assign@fb.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "cve-assign@fb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-843"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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