CVE-2021-47793

HIGH

7.5

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.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/16/2026

Derniere modification1/30/2026

Sourcenvd

Observations honeypot0

Produits affectes

telegram:telegram_desktop

Faiblesses (CWE)

CWE-770

References

https://telegram.org(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/50247(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/telegram-desktop-denial-of-service-poc(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/50247(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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