CVE-2026-4434 Security feature bypass in Server
Network attackers can intercept WinRM connections via man-in-the-middle attacks due to improper certificate validation in Devolutions Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4434?
CVE-2026-4434 is a high-severity vulnerability in Devolutions Devolutions Server, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-295
Which versions are affected by CVE-2026-4434?
It affects 1 product.
Products include Devolutions Devolutions Server.
How do I fix CVE-2026-4434?
No fix has been published for CVE-2026-4434 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4434 being exploited?
There is no known exploitation of CVE-2026-4434 in the wild and no public exploit code.
Other vulnerabilities in Devolutions Devolutions Server
Sources
Also known as GHSA-hqx9-f7wh-p26w.