{"id":"CVE-2022-28281","published":"2022-12-22T00:00:00Z","modified":"2025-04-15T20:09:53Z","title":"If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent…","vendor":"Mozilla","product":"Thunderbird","tier":"core","eol":null,"affectedVersions":[{"vendor":"Mozilla","product":"Thunderbird","versions":[">= unspecified, < 91.8"]},{"vendor":"Mozilla","product":"Firefox","versions":[">= unspecified, < 99"]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[">= unspecified, < 91.8"]}],"description":{"text":"If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.","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":0.02781,"percentile":0.86346,"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":4,"pulses":[{"name":"ACTUALIZACION | Actualización de seguridad para MozillaFirefox | SUSE","url":"https://otx.alienvault.com/pulse/625455b63d4051c2eaa370e8","created":"2022-04-11"},{"name":"ACTUALIZACION | Security Vulnerabilities fixed in Firefox 99 — Mozilla","url":"https://otx.alienvault.com/pulse/62530a3a52df9ba2c217991c","created":"2022-04-10"},{"name":"USN-5370-1: Firefox vulnerabilities | Ubuntu security notices | Ubuntu","url":"https://otx.alienvault.com/pulse/625303dc18a0b0fc902f9926","created":"2022-04-10"},{"name":"Red Hat Customer Portal - Access to 24x7 support and knowledge","url":"https://otx.alienvault.com/pulse/625199167b6c3b03fb5b0b1a","created":"2022-04-09"}],"provenance":"machine"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-13/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-14/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-15/","tags":[]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1755621","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-32733","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-32733","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2022-04-08","earliestUrl":"https://github.com/0vercl0k/CVE-2022-28281","repos":[{"name":"0vercl0k/CVE-2022-28281","url":"https://github.com/0vercl0k/CVE-2022-28281","stars":73,"created":"2022-04-08"}]},"first":{"date":"2022-04-08","source":"PoC-in-GitHub","url":"https://github.com/0vercl0k/CVE-2022-28281"},"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2022-04-08","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/0vercl0k/CVE-2022-28281","provenance":"source"},{"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-2022-28281","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":65.0,"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":17.27,"detail":"percentile 0.8635"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":1.59,"detail":"4 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}