{"id":"CVE-2022-1529","published":"2022-12-22T00:00:00Z","modified":"2025-04-16T15:19:47Z","title":"An attacker could have sent a message to the parent process where the contents were used to double-index into a…","vendor":"Mozilla","product":"Firefox ESR","tier":"core","eol":null,"affectedVersions":[{"vendor":"Mozilla","product":"Firefox ESR","versions":[">= unspecified, < 91.9.1"]},{"vendor":"Mozilla","product":"Firefox","versions":[">= unspecified, < 100.0.2"]},{"vendor":"Mozilla","product":"Firefox for Android","versions":[">= unspecified, < 100.3.0"]},{"vendor":"Mozilla","product":"Thunderbird","versions":[">= unspecified, < 91.9.1"]}],"description":{"text":"An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.17608,"percentile":0.9714,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2022-08-15","exploitedFirstSeen":"2022-08-15","ransomware":false,"evidence":[{"url":"https://securelist.com/it-threat-evolution-in-q2-2022-non-mobile-statistics/107133/","date":"2022-08-15"}],"evidenceTotal":1,"provenance":"source"},"exploited":true,"otx":{"pulseCount":3,"pulses":[{"name":"Vulnerabilities in Mozilla Products","url":"https://otx.alienvault.com/pulse/629d9dafb28b4c6d47312074","created":"2022-06-06"},{"name":"Tails OS Users Warned Not to Use Bundled Tor Browser until Critical Bugs in Firefox Browser are Fixed","url":"https://otx.alienvault.com/pulse/629059c725096a77cc624646","created":"2022-05-27"},{"name":"Zero-day Bugs Fixed by Mozilla That Can Let Hackers Gain JavaScript Code Execution on Vulnerable Devices","url":"https://otx.alienvault.com/pulse/628f2795fd6f7de659125398","created":"2022-05-26"}],"provenance":"machine"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-19/","tags":[]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1770048","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-24827","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-24827","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2022-08-15","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://securelist.com/it-threat-evolution-in-q2-2022-non-mobile-statistics/107133/","provenance":"source"},{"date":"2022-12-22","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2022-1529","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":62.0,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1536 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.43,"detail":"percentile 0.9714"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":1.37,"detail":"3 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}