CVE-2026-4434
Improper Certificate Validation in PAM WinRM Enables MitM Attack
Publication date: 2026-03-20
Last updated on: 2026-03-30
Assigner: Devolutions Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| devolutions | devolutions_server | to 2026.1.6.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-295 | The product does not validate, or incorrectly validates, a certificate. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves improper certificate validation in the PAM propagation WinRM connections. Specifically, TLS certificate verification is disabled, which allows a network attacker to perform a man-in-the-middle (MITM) attack.
How can this vulnerability impact me? :
Because TLS certificate verification is disabled, an attacker on the network can intercept and potentially alter communications between systems using PAM propagation WinRM connections. This could lead to unauthorized access, data interception, or manipulation.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know