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Critical Telegram Zero-Day Vulnerability Exposes User Accounts to Remote Hijacking

ID: fcde7526-ac20-5dc2-b17d-0b8dcdfbd5ae

STIX ID: report--fcde7526-ac20-5dc2-b17d-0b8dcdfbd5ae

Feed Name: ThreatCluster

Threat Score
76/100

Date Published: 2026-03-28

Date Updated: 2026-03-31

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A critical zero-day vulnerability (ZDI-CAN-30207) affecting Telegram permits remote account hijacking without user interaction and has been assigned a CVSS score of 9.8; users are advised to monitor for patches and enable strong passwords and two-factor authentication while Telegram works to release a fix.

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