What is CVE-2025-67229?

CVE-2025-67229 is a critical-severity vulnerability in Todesktop Builder, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2026-01-23.

How severe is CVE-2025-67229?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Todesktop Builder

CVE-2025-67229

An improper certificate validation vulnerability exists in ToDesktop Builder v0.32.1 This vulnerability allows an unauthenticated, on-path attacker to spoof backend responses by exploiting insufficient certificate validation.

Vulnerability class: Improper Certificate Validation

Published 2026-01-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (17.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Todesktop Builder

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

www.todesktop.com/changelog (Product, Release Notes)
www.todesktop.com/security/advisories/TDSA-2025-001 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-67229?: CVE-2025-67229 is a critical-severity vulnerability in Todesktop Builder, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2026-01-23.
How severe is CVE-2025-67229?: Critical severity. CVSS v3 base score is 9.8 out of 10.