{"id":"CVE-2021-30860","published":"2021-08-24T19:15:14Z","modified":"2026-06-17T03:51:01Z","title":"Apple Multiple Products Integer Overflow Vulnerability","vendor":"Apple","product":"Multiple Products","tier":"core","eol":null,"description":{"text":"An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.","provenance":"source","from":"NVD"},"summary":{"text":"Apple's multiple products contain an integer overflow in PDF processing, addressed through improved input validation. An attacker who supplies a maliciously crafted PDF can achieve arbitrary code execution, which requires a local user to open or process the file, meaning user interaction and local access without prior authentication.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:02Z"},"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":0.75994,"percentile":0.99528,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2021-11-17","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-30860","provenance":"source"},"vulncheckKev":{"dateAdded":"2021-09-07","exploitedFirstSeen":"2021-09-07","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2021-09-07"},{"url":"https://support.apple.com/en-us/103147","date":"2021-09-13"},{"url":"https://support.apple.com/en-us/103148","date":"2021-09-13"},{"url":"https://support.apple.com/kb/HT212806","date":"2021-09-13"},{"url":"https://support.apple.com/kb/HT212807","date":"2021-09-13"},{"url":"https://support.apple.com/en-us/103157","date":"2021-09-23"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"},{"url":"https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Buying_Spying_-_Insights_into_Commercial_Surveillance_Vendors.pdf","date":"2024-02-06"},{"url":"https://go.recordedfuture.com/hubfs/reports/CTA-2024-0416.pdf","date":"2024-04-16"}],"evidenceTotal":9,"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-190","name":"Integer Overflow or Wraparound"},{"id":"CWE-20","name":"Improper Input Validation"}],"references":[{"url":"http://seclists.org/fulldisclosure/2021/Sep/25","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/26","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/27","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/28","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/38","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/39","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/40","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/50","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2022/09/02/11","tags":["Mailing List"]},{"url":"https://security.gentoo.org/glsa/202209-21","tags":["Third Party Advisory"]},{"url":"https://support.apple.com/en-us/HT212804","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212805","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212806","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212807","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT212824","tags":["Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/25","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/26","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/27","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/28","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/38","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/39","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/40","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Sep/50","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2022/09/02/11","tags":["Mailing 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expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2021-17777","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-17777","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2021-09-18","earliestUrl":"https://github.com/Levilutz/CVE-2021-30860","repos":[{"name":"jeffssh/CVE-2021-30860","url":"https://github.com/jeffssh/CVE-2021-30860","stars":103,"created":"2021-12-25"},{"name":"Levilutz/CVE-2021-30860","url":"https://github.com/Levilutz/CVE-2021-30860","stars":13,"created":"2021-09-18"}]},"first":{"date":"2021-09-18","source":"PoC-in-GitHub","url":"https://github.com/Levilutz/CVE-2021-30860"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1204.002"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2021-08-24","kind":"published","label":"Published 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