{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "WhatsApp Desktop for Mac", "vendor": "Facebook", "versions": [{"lessThan": "2.2338.12", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "WhatsApp Desktop for Windows", "vendor": "Facebook", "versions": [{"lessThan": "2.2320.2", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "WhatsApp Business for iOS", "vendor": "Facebook", "versions": [{"lessThan": "2.23.10.77", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "WhatsApp for iOS", "vendor": "Facebook", "versions": [{"lessThan": "2.23.10.77", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "WhatsApp Business for Android", "vendor": "Facebook", "versions": [{"lessThan": "2.23.10.77", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "WhatsApp for Android", "vendor": "Facebook", "versions": [{"lessThan": "2.23.10.77", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "cve-assign@fb.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:desktop:windows:*:*", "matchCriteriaId": "59B97470-3259-479B-A43F-13FAD03299F6", "versionEndExcluding": "2.2320.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability."}, {"lang": "es", "value": "Una condici\u00f3n de ejecuci\u00f3n en un subsistema de eventos provoc\u00f3 un problema de use-after-free en llamadas de audio/video establecidas que podr\u00eda haber resultado en la terminaci\u00f3n de la aplicaci\u00f3n o en un flujo de control inesperado con muy baja probabilidad."}], "id": "CVE-2023-38538", "lastModified": "2026-06-17T06:10:41.083", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.4, "source": "cve-assign@fb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-38538", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-19T15:27:40.316899Z", "version": "2.0.3"}}]}, "published": "2023-10-04T20:15:10.020", "references": [{"source": "cve-assign@fb.com", "tags": ["Vendor Advisory"], "url": "https://www.whatsapp.com/security/advisories/2023/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.whatsapp.com/security/advisories/2023/"}], "sourceIdentifier": "cve-assign@fb.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}