{"id":"CVE-2021-30496","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-30496","generatedAt":"2026-10-27T20:22:44.387Z","title":"The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of service (application crash) if the victim pastes an attacker-supplied message (e.g., in the Persian language) into a channel or group.","description":"The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of service (application crash) if the victim pastes an attacker-supplied message (e.g., in the Persian language) into a channel or group. The crash occurs in MtProtoKitFramework. NOTE: the vendor's perspective is that \"this behavior can't be considered a vulnerability.\"","published":"2021-04-20T16:15:11.000Z","lastModified":"2026-06-17T03:50:20.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"},"cwe":["CWE-121"],"affected":["telegram/telegram"],"epss":{"score":0.01177,"percentile":0.67421,"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":"low","text":"Lower severity and a low EPSS score (1.18%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://t.me/joinchat/bJ9cnUosVh03ZTI0","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://t.me/joinchat/bJ9cnUosVh03ZTI0","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-30496","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."}