CVE-2026-4434
HIGHCVSS 8.1/10EPSS 0.14%
Last modified
CVE-2026-4434 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Devolutions | Devolutions Server | < 2026.1.6.0 |
References
- https://devolutions.net/security/advisories/DEVO-2026-0005/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is 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.
How severe is CVE-2026-4434?
CVE-2026-4434 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.
How do I fix CVE-2026-4434?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-4434?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST