CVE-2021-27204: Medium severity telegram vulnerability

Published Feb 12, 2021
·
Updated

Telegram before 7.4 (212543) Stable on macOS stores the local passcode in cleartext, leading to information disclosure.

Affected Software

2 affected components
Telegram Telegram<7.4.0
Apple macOS

Event History

Feb 12, 2021
CVE Published
via MITRE·07:48 AM
Data Sourced
via MITRE·07:48 AM
Description
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2021-27204?

CVE-2021-27204 is a vulnerability in Telegram before version 7.4 (212543) Stable on macOS that stores the local passcode in cleartext, leading to information disclosure.

2

What is the severity of CVE-2021-27204?

CVE-2021-27204 has a severity rating of medium with a CVSS severity score of 5.5.

3

How does CVE-2021-27204 affect Telegram on macOS?

CVE-2021-27204 affects Telegram before version 7.4 (212543) Stable on macOS by storing the local passcode in cleartext, which can lead to information disclosure.

4

How can I fix CVE-2021-27204?

To fix CVE-2021-27204, it is recommended to update Telegram to version 7.4 (212543) Stable or a higher version which addresses the vulnerability.

5

Where can I find more information about CVE-2021-27204?

You can find more information about CVE-2021-27204 at the following references: [Link 1](https://www.inputzero.io/2020/12/telegram-privacy-fails-again.html) and [Link 2](https://www.youtube.com/watch?v=zEt-_5b4OaA).

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203