{"id":"CVE-2021-30496","state":"PUBLISHED","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 Pe","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.\"","publishedAt":"2021-04-20T00:00:00.000Z","updatedAt":"2024-08-03T22:32:41.088Z","severity":{"score":5.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31","https://t.me/joinchat/bJ9cnUosVh03ZTI0"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T19:48:26.823Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/30xxx/CVE-2021-30496.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-30496","state":"PUBLISHED","datePublished":"2021-04-20T00:00:00.000Z","dateUpdated":"2024-08-03T22:32:41.088Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-04-11T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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.\""}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31"},{"url":"https://t.me/joinchat/bJ9cnUosVh03ZTI0"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2022-10-14T00:00:00.000Z"},"tags":["disputed"]},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"telegram","product":"telegram","defaultStatus":"unknown","versions":[{"version":"7.6.2","status":"affected"}],"cpes":["cpe:2.3:a:telegram:telegram:*:*:*:*:*:iphone_os:*:*"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.7,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2021-30496","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-01T14:44:16.196509Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","lang":"en","type":"CWE","description":"CWE-121 Stack-based Buffer Overflow"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:12:40.657Z"}},{"title":"CVE Program Container","references":[{"url":"https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31","tags":["x_transferred"]},{"url":"https://t.me/joinchat/bJ9cnUosVh03ZTI0","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T22:32:41.088Z"}}]}}}