{"api_version":"1","generated_at":"2026-04-23T09:53:18+00:00","cve":"CVE-2021-39845","urls":{"html":"https://cve.report/CVE-2021-39845","api":"https://cve.report/api/cve/CVE-2021-39845.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-39845","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-39845"},"summary":{"title":"CVE-2021-39845","description":"Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a stack overflow vulnerability due to insecure handling of a crafted PDF file, potentially resulting in memory corruption in the context of the current user. Exploitation requires user interaction in that a victim must open a crafted PDF file in Acrobat Reader.","state":"PUBLIC","assigner":"psirt@adobe.com","published_at":"2021-09-29 16:15:00","updated_at":"2022-02-05 02:17:00"},"problem_types":["CWE-121"],"metrics":[],"references":[{"url":"https://helpx.adobe.com/security/products/acrobat/apsb21-55.html","name":"https://helpx.adobe.com/security/products/acrobat/apsb21-55.html","refsource":"MISC","tags":[],"title":"Adobe Security Bulletin","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-39845","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39845","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"17.011.30199","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"classic","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"20.004.30006","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"classic","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"21.005.20058","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat_dc","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"continuous","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"21.005.20060","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat_dc","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"continuous","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"17.011.30199","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat_reader","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"classic","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"20.004.30006","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat_reader","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"classic","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"21.005.20058","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat_reader_dc","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"continuous","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"1","versionEndIncluding":"21.005.20060","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adobe","cpe5":"acrobat_reader_dc","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"continuous","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"macos","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"39845","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-39845","qid":"375845","title":"Adobe Security Update for Adobe Acrobat and Adobe Reader (APSB21-55)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"psirt@adobe.com","DATE_PUBLIC":"2021-09-14T23:00:00.000Z","ID":"CVE-2021-39845","STATE":"PUBLIC","TITLE":"Adobe Acrobat Reader Page Tree Node Recursive Stack Overflow"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Acrobat Reader","version":{"version_data":[{"version_affected":"<=","version_value":"2020.004.30006"},{"version_affected":"<=","version_value":"2017.011.30199"},{"version_affected":"<=","version_value":"2021.005.20060"},{"version_affected":"<=","version_value":"None"}]}}]},"vendor_name":"Adobe"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a stack overflow vulnerability due to insecure handling of a crafted PDF file, potentially resulting in memory corruption in the context of the current user. Exploitation requires user interaction in that a victim must open a crafted PDF file in Acrobat Reader."}]},"impact":{"cvss":{"attackComplexity":"Low","attackVector":"Local","availabilityImpact":"High","baseScore":6.1,"baseSeverity":"Medium","confidentialityImpact":"None","integrityImpact":"Low","privilegesRequired":"None","scope":"Unchanged","userInteraction":"Required","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Stack-based Buffer Overflow (CWE-121)"}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://helpx.adobe.com/security/products/acrobat/apsb21-55.html","name":"https://helpx.adobe.com/security/products/acrobat/apsb21-55.html"}]},"source":{"discovery":"EXTERNAL"}},"nvd":{"publishedDate":"2021-09-29 16:15:00","lastModifiedDate":"2022-02-05 02:17:00","problem_types":["CWE-121"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":4.2},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":5.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*","versionStartIncluding":"20.001.30005","versionEndIncluding":"20.004.30006","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*","versionStartIncluding":"20.001.30005","versionEndIncluding":"20.004.30006","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*","versionStartIncluding":"15.008.20082","versionEndIncluding":"21.005.20058","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*","versionStartIncluding":"15.008.20082","versionEndIncluding":"21.005.20058","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*","versionStartIncluding":"15.008.20082","versionEndIncluding":"21.005.20060","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*","versionStartIncluding":"15.008.20082","versionEndIncluding":"21.005.20060","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*","versionStartIncluding":"17.011.30059","versionEndIncluding":"17.011.30199","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*","versionStartIncluding":"17.011.30059","versionEndIncluding":"17.011.30199","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"39845","Ordinal":"215551","Title":"CVE-2021-39845","CVE":"CVE-2021-39845","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"39845","Ordinal":"1","NoteData":"Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a stack overflow vulnerability due to insecure handling of a crafted PDF file, potentially resulting in memory corruption in the context of the current user. Exploitation requires user interaction in that a victim must open a crafted PDF file in Acrobat Reader.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"39845","Ordinal":"2","NoteData":"2021-09-29","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"39845","Ordinal":"3","NoteData":"2022-01-28","Type":"Other","Title":"Modified"}]}}}