CVE-2026-4434 Details
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.
A vulnerability exists in Devolutions Server and Remote Desktop Manager due to improper certificate validation in WinRM connections. This flaw allows network attackers to perform man-in-the-middle attacks by exploiting disabled TLS certificate verification. The vulnerability affects Devolutions Server versions through 2025.3.15.0 and Remote Desktop Manager versions through 2025.3.30.
Users are advised to upgrade to Devolutions Server 2026.1 or Remote Desktop Manager 2026.1.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://devolutions.net/security/advisories/DEVO-2026-0005/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-295 | Improper Certificate Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| devolutions devolutions server | < 2026.1.6.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 30, 2026 | Initial Analysis | [email protected] |
| Mar 23, 2026 | CVE Modified | CISA-ADP |
| Mar 20, 2026 | New CVE Received | [email protected] |