NULL pointer dereference in Telegram Desktop

CVE-2026-7701

A security vulnerability has been detected in Telegram Desktop up to 6.7.5. This vulnerability affects the function RequestButton of the file Telegram/SourceFiles/boxes/url_auth_box.cpp of the component Bot API. The manipulation of the arg…

EPSS: 0.000 (2.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-7701?
CVE-2026-7701 is a medium-severity vulnerability in Telegram Desktop, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-03.
How severe is CVE-2026-7701?
Medium severity. CVSS v3 base score is 4.3 out of 10.