{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-38831", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-10-21T23:05:40.146Z", "dateReserved": "2023-07-25T00:00:00.000Z", "datePublished": "2023-08-23T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-10-23T00:10:57.118Z"}, "descriptions": [{"lang": "en", "value": "RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/"}, {"url": "https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/"}, {"url": "https://news.ycombinator.com/item?id=37236100"}, {"url": "http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html"}, {"url": "https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-38831", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-04-29T18:48:48.346127Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2023-08-24", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831"}}}], "affected": [{"cpes": ["cpe:2.3:a:rarlab:winrar:-:*:*:*:*:*:*:*"], "vendor": "rarlab", "product": "winrar", "versions": [{"status": "affected", "version": "0", "lessThan": "6.23", "versionType": "semver"}], "defaultStatus": "unknown"}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-351", "description": "CWE-351 Insufficient Type Distinction"}]}], "timeline": [{"time": "2023-08-24T00:00:00+00:00", "lang": "en", "value": "CVE-2023-38831 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:05:40.146Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T17:54:38.543Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/", "tags": ["x_transferred"]}, {"url": "https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/", "tags": ["x_transferred"]}, {"url": "https://news.ycombinator.com/item?id=37236100", "tags": ["x_transferred"]}, {"url": "http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html", "tags": ["x_transferred"]}, {"url": "https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/", "tags": ["x_transferred"]}, {"url": "https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/", "tags": ["x_transferred"]}, {"url": "https://news.ycombinator.com/item?id=37236100", "tags": ["x_transferred"]}, {"url": "http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html", "tags": ["x_transferred"]}, {"url": "https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T17:54:38.543Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-38831", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-04-29T18:48:48.346127Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2023-08-24", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831"}}}], "affected": [{"cpes": ["cpe:2.3:a:rarlab:winrar:-:*:*:*:*:*:*:*"], "vendor": "rarlab", "product": "winrar", "versions": [{"status": "affected", "version": "0", "lessThan": "6.23", "versionType": "semver"}], "defaultStatus": "unknown"}], "timeline": [{"lang": "en", "time": "2023-08-24T00:00:00+00:00", "value": "CVE-2023-38831 added to CISA KEV"}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-351", "description": "CWE-351 Insufficient Type Distinction"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-04-29T18:53:11.647Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "references": [{"url": "https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/"}, {"url": "https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/"}, {"url": "https://news.ycombinator.com/item?id=37236100"}, {"url": "http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html"}, {"url": "https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/"}], "descriptions": [{"lang": "en", "value": "RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-10-23T00:10:57.118Z"}}}, "cveMetadata": {"cveId": "CVE-2023-38831", "state": "PUBLISHED", "dateUpdated": "2025-10-21T23:05:40.146Z", "dateReserved": "2023-07-25T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2023-08-23T00:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.1"}

{"cisaActionDue": "2023-09-14", "cisaExploitAdd": "2023-08-24", "cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "RARLAB WinRAR Code Execution Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*", "matchCriteriaId": "A586AE4C-6F08-4E96-B74C-AA0A7BF4F2DD", "versionEndExcluding": "6.23", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023."}, {"lang": "es", "value": "RARLAB WinRAR anterior a la versi\u00f3n 6.23 permite a los atacantes ejecutar c\u00f3digo arbitrario cuando un usuario intenta ver un archivo benigno dentro de un archivo ZIP. El problema se produce porque un archivo ZIP puede incluir un archivo benigno (como un archivo .JPG normal) y tambi\u00e9n una carpeta que tiene el mismo nombre que el archivo benigno, y el contenido de la carpeta (que puede incluir contenido ejecutable) se procesa durante un intento de acceder \u00fanicamente al archivo benigno. Esto se explot\u00f3 de forma activa entre abril y octubre de 2023."}], "id": "CVE-2023-38831", "lastModified": "2025-10-31T14:39:33.660", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2023-08-23T17:15:43.863", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking"], "url": "https://news.ycombinator.com/item?id=37236100"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Press/Media Coverage", "Third Party Advisory"], "url": "https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Press/Media Coverage", "Third Party Advisory"], "url": "https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://news.ycombinator.com/item?id=37236100"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Press/Media Coverage", "Third Party Advisory"], "url": "https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Press/Media Coverage", "Third Party Advisory"], "url": "https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-345"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-351"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{}