Vulnerability in Devolutions Devolutions_server
CVE-2026-4434
Improper certificate validation in the PAM propagation WinRM connections allows a network attacker to perform a man-in-the-middle attack via disabled TLS certificate verification.
Vulnerability class: Improper Certificate Validation
EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Devolutions Devolutions_server
- Devolutions Server — versions 0
Weakness classification (CWE)
References
- security@devolutions.net (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-4434?
- CVE-2026-4434 is a high-severity vulnerability in Devolutions Devolutions_server, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2026-03-20.
- How severe is CVE-2026-4434?
- High severity. CVSS v3 base score is 8.1 out of 10.