Description

Telegram Desktop 2.9.2 contains a denial of service vulnerability that allows attackers to crash the application by sending an oversized message payload. Attackers can generate a 9 million byte buffer and paste it into the messaging interface to trigger an application crash.

INFO

Published Date :

2026-01-15T23:25:43.035Z

Last Modified :

2026-01-16T21:11:53.505Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2021-47793 vulnerability.

Vendors Products
Telegram
  • Telegram
  • Telegram Desktop
Telegram Desktop
  • Telegram Desktop
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47793.

URL Resource
https://telegram.org cve-icon cve-icon
https://www.exploit-db.com/exploits/50247 cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/telegram-desktop-denial-of-service-poc cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact