{"id":"CVE-2020-9715","published":"2020-08-19T14:15:13Z","modified":"2026-06-17T03:28:26Z","title":"Adobe Acrobat Use-After-Free Vulnerability","vendor":"Adobe","product":"Acrobat","tier":"core","eol":null,"description":{"text":"Adobe Acrobat and Reader versions 2020.009.20074 and earlier, 2020.001.30002, 2017.011.30171 and earlier, and 2015.006.30523 and earlier have an use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution .","provenance":"source","from":"NVD"},"summary":{"text":"Adobe Acrobat (and Reader) contains a use-after-free memory-safety flaw in its handling of documents, affecting the listed older builds of the product. A local attacker with no privileges can achieve arbitrary code execution, but only if a user is induced to interact with the crafted content, such as by opening a malicious file.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:00Z"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.33491,"percentile":0.98375,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2026-04-13","dueDate":"2026-04-27","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://helpx.adobe.com/security/products/acrobat/apsb20-48.html ; https://nvd.nist.gov/vuln/detail/CVE-2020-9715","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-04-13","exploitedFirstSeen":"2026-04-13","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-04-13"}],"evidenceTotal":1,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"references":[{"url":"https://blog.exodusintel.com/2021/04/20/analysis-of-a-use-after-free-vulnerability-in-adobe-acrobat-reader-dc/","tags":["Exploit","Patch","Third Party Advisory"]},{"url":"https://helpx.adobe.com/security/products/acrobat/apsb20-48.html","tags":["Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-20-991/","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://blog.exodusintel.com/2021/04/20/analysis-of-a-use-after-free-vulnerability-in-adobe-acrobat-reader-dc/","tags":["Exploit","Patch","Third Party Advisory"]},{"url":"https://helpx.adobe.com/security/products/acrobat/apsb20-48.html","tags":["Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-20-991/","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9715","tags":["US Government Resource"]}],"techniques":[{"id":"T1204.002","name":"Malicious File","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: user opens malicious PDF in Reader","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Adobe Acrobat and Reader versions 2020.009.20074 and earlier","start":0,"end":60}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: use-after-free yields arbitrary code execution in client app","mappingType":"primary_impact","evidence":[{"from":"description","quote":"Successful exploitation could lead to arbitrary code execution","start":175,"end":237}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-30495","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-30495","exploited":true,"exploitedSince":"2026-04-13","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2022-01-10","earliestUrl":"https://github.com/lsw29475/CVE-2020-9715","repos":[{"name":"lsw29475/CVE-2020-9715","url":"https://github.com/lsw29475/CVE-2020-9715","stars":5,"created":"2022-01-10"},{"name":"f8al/PoC-CVE-2020-9715","url":"https://github.com/f8al/PoC-CVE-2020-9715","stars":2,"created":"2026-04-14"}]},"first":{"date":"2022-01-10","source":"PoC-in-GitHub","url":"https://github.com/lsw29475/CVE-2020-9715"},"provenance":"source"},"exploitRefs":["https://blog.exodusintel.com/2021/04/20/analysis-of-a-use-after-free-vulnerability-in-adobe-acrobat-reader-dc/"],"flow":[{"stage":"exploitation","techniques":["T1204.002"],"provenance":"ai"},{"stage":"primary","techniques":["T1203"],"provenance":"ai"}],"timeline":[{"date":"2020-08-19","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9715","provenance":"source"},{"date":"2022-01-10","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/lsw29475/CVE-2020-9715","provenance":"source"},{"date":"2026-04-13","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2026-04-13","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-04-13","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-30495","provenance":"source"}],"speed":{"daysToPublicExploit":509,"firstExploitFrom":"PoC-in-GitHub","daysToKev":2063},"priority":{"score":73.1,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":5.0,"detail":"added 199 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.68,"detail":"percentile 0.9838"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit; 2 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.46,"detail":"base score 7.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-adobe-acrobat-reader-cwe-416"}}