CVE-2021-30496: Telegram

Medium severity, CVSS 5.7. EPSS: 1.2% chance of exploitation in the next 30 days.

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 products

Published 2021-04-20. Last modified 2026-06-17.