CVE-2021-27204

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

• CWE-312

• https://www.inputzero.io/2020/12/telegram-privacy-fails-again.htmlThird Party Advisory
• https://www.youtube.com/watch?v=zEt-_5b4OaAExploit, Third Party Advisory
• https://www.inputzero.io/2020/12/telegram-privacy-fails-again.htmlThird Party Advisory
• https://www.youtube.com/watch?v=zEt-_5b4OaAExploit, Third Party Advisory

Published

Feb 12, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-27196Improper Input Validation vulnerability in Hitachi ABB Power…7.5
• CVE-2021-27197DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 …8.1
• CVE-2021-27198An issue was discovered in Visualware MyConnection Server be…9.8
• CVE-2021-27200In WoWonder 3.0.4, remote attackers can take over any accoun…9.8
• CVE-2021-27201Endian Firewall Community (aka EFW) 3.3.2 allows remote auth…8.8
• CVE-2021-27203In Dekart Private Disk 2.15, invalid use of the Type3 user b…5.5
• CVE-2021-27205Telegram before 7.4 (212543) Stable on macOS stores the loca…5.5
• CVE-2021-27208When booting a Zync-7000 SOC device from nand flash memory, …6.8
• CVE-2021-27209In the management interface on TP-Link Archer C5v 1.7_181221…7.1
• CVE-2021-27210TP-Link Archer C5v 1.7_181221 devices allows remote attacker…6.5
• CVE-2021-27211steghide 0.5.1 relies on a certain 32-bit seed value, which …7.5
• CVE-2021-27212In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an …7.5