{"id":"CVE-2021-30984","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-30984","generatedAt":"2026-10-27T22:26:15.675Z","title":"A race condition was addressed with improved state handling.","description":"A race condition was addressed with improved state handling. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.","published":"2021-08-24T19:15:24.000Z","lastModified":"2026-06-17T03:51:16.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-362"],"affected":["apple/safari","apple/ipados","apple/iphone os","apple/macos","apple/tvos","apple/watchos","fedoraproject/fedora","debian/debian linux"],"epss":{"score":0.0167,"percentile":0.76639,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2022/01/21/2","source":"product-security@apple.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EQVZ3CEMTINLBZ7PBC7WRXVEVCRHNSM/","source":"product-security@apple.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQKWD4BXRDD2YGR5AVU7H5J5PIQIEU6V/","source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212975","source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212976","source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212978","source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212980","source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT212982","source":"product-security@apple.com"},{"url":"https://www.debian.org/security/2022/dsa-5060","source":"product-security@apple.com"},{"url":"https://www.debian.org/security/2022/dsa-5061","source":"product-security@apple.com"},{"url":"http://www.openwall.com/lists/oss-security/2022/01/21/2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EQVZ3CEMTINLBZ7PBC7WRXVEVCRHNSM/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQKWD4BXRDD2YGR5AVU7H5J5PIQIEU6V/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212975","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212976","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212978","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212980","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT212982","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2022/dsa-5060","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2022/dsa-5061","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-30984","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."}