CVE-2021-27351 json
The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to inval…
published 2021-02-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14111
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.
Patch / fix
- telegram-desktop Debian 14, Debian 12 2.6.1-1
debian advisories DEBIAN-CVE-2021-27351
Exploit prediction
0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-613 DEPRECATED: Insufficient Session Expiration
References
-
security.gentoo.org
/glsa/202105-07
vendor-advisory, third-party-advisory
-
0ffsecninja.github.io
/Telegram:CVE-2021-2735.html
third-party-advisory
Sources
- CVE List CVE-2021-27351
- NVD CVE-2021-27351
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.