{"id":"CVE-2021-30860","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-30860","generatedAt":"2026-10-31T14:15:07.869Z","title":"Apple Multiple Products Integer Overflow Vulnerability","description":"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.","published":"2021-08-24T19:15:14.000Z","lastModified":"2026-06-17T03:51:02.000Z","status":"Analyzed","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":["apple/ipados","apple/iphone os","apple/mac os x","apple/macos","apple/watchos","xpdfreader/xpdf","freedesktop/poppler"],"epss":{"score":0.75994,"percentile":0.99529,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-30860"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://seclists.org/fulldisclosure/2021/Sep/25","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/26","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/27","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/28","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/38","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/39","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/40","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/50","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://www.openwall.com/lists/oss-security/2022/09/02/11","tags":["Mailing List"],"source":"product-security@apple.com"},{"url":"https://security.gentoo.org/glsa/202209-21","tags":["Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212804","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212805","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212806","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212807","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT212824","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/25","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/26","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/27","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/28","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/38","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/39","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/40","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Sep/50","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2022/09/02/11","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202209-21","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212804","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212805","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212806","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212807","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT212824","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30860","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-30860","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}