CVE-2021-30496

MEDIUM

Telegram 7.6.2 for iOS - Denial of Service via Persian Language Message Paste

Title source: llm
STIX 2.1

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."

References (2)

Core 2

Scores

CVSS v3 5.7
EPSS 0.0118
EPSS Percentile 63.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-121
Status published
Products (1)
telegram/telegram 7.6.2
Published Apr 20, 2021
Tracked Since Feb 18, 2026