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Vulnerability DatabaseCVE-2020-25824

CVE-2020-25824: 
Telegram Desktop vulnerability analysis and mitigation

Overview

Telegram Desktop through version 2.4.3 contained a security vulnerability (CVE-2020-25824) related to passcode verification during data export. The vulnerability was discovered in September 2020 and disclosed in October 2020. The issue affects the Export Telegram Data wizard functionality in Telegram Desktop versions 2.3.1 and 2.4.3 and earlier (NVD, Gentoo).

Technical details

The vulnerability stems from a lack of passcode verification when using the Export key within the Export Telegram Data wizard. When a user opens the Export Wizard and leaves the system unattended, the application fails to require passcode re-entry upon pushing the Export button, even if local passcode protection is enabled (NVD).

Impact

The vulnerability could lead to unauthorized access to all chat conversations and media files. An attacker with physical access to an unattended system could export all Telegram data without needing to know or enter the local passcode, resulting in a complete compromise of user privacy (NVD).

Mitigation and workarounds

The vulnerability was fixed in Telegram Desktop version 2.4.4. Users should upgrade to version 2.4.4 or later to address this security issue. Until the update can be applied, users should not leave their systems unattended with the Export Telegram Data wizard open (Gentoo).

Additional resources

Source: This report was generated using AI

Related Telegram Desktop vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2020-17448HIGH7.8
  • Telegram DesktopTelegram Desktop
  • net-im/telegram-desktop
NoYesAug 11, 2020
CVE-2020-12474MEDIUM6.5
  • NixOSNixOS
  • telegram
NoYesMay 01, 2020
CVE-2021-36769MEDIUM5.3
  • NixOSNixOS
  • telegram-desktop
NoYesJul 17, 2021
CVE-2021-47793MEDIUM4.6
  • Telegram DesktopTelegram Desktop
  • cpe:2.3:a:telegram:telegram_desktop
NoNoJan 16, 2026
CVE-2020-25824LOW2.4
  • Telegram DesktopTelegram Desktop
  • net-im/telegram-desktop
NoYesOct 14, 2020

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