// For flags

CVE-2021-30496

 

Severity Score

5.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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."

** EN DISPUTA ** La aplicación Telegram versión 7.6.2 para iOS, permite a usuarios autenticados remoto causar una denegación de servicio (bloqueo de la aplicación) si la víctima pega un mensaje proporcionado por el atacante (por ejemplo, en el idioma Persian) en un canal o grupo. El bloqueo ocurre en la función MtProtoKitFramework. NOTA: la perspectiva del proveedor es que "este comportamiento no puede considerarse una vulnerabilidad"

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-04-11 CVE Reserved
  • 2021-04-20 CVE Published
  • 2023-05-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-121: Stack-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Telegram
Search vendor "Telegram"
Telegram
Search vendor "Telegram" for product "Telegram"
7.6.2
Search vendor "Telegram" for product "Telegram" and version "7.6.2"
iphone_os
Affected