{"id":"CVE-2021-30966","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-30966","generatedAt":"2026-10-27T22:26:49.084Z","title":"User traffic might unexpectedly be leaked to a proxy server despite PAC configurations.","description":"A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. User traffic might unexpectedly be leaked to a proxy server despite PAC configurations.","published":"2021-08-24T19:15:23.000Z","lastModified":"2026-06-17T03:51:14.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":[],"affected":["apple/ipados","apple/iphone os","apple/macos","apple/tvos","apple/watchos"],"epss":{"score":0.01502,"percentile":0.74128,"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 (1.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"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/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"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-30966","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."}