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HIGH · 8.1

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 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
DevolutionsDevolutions Server< 2026.1.6.0

Related Weaknesses (CWE)

CWE-295

References

FAQ

What is CVE-2026-4434?

CVE-2026-4434 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4434?

Check the references section above for vendor advisories and patch information. Affected products include: Devolutions Devolutions Server.