CVE-2026-114047 FreeRDP CVE debrief

Who should care

Defenders responsible for network-positioned systems using FreeRDP 2.0.0 before 3.32.0 should assess exposure and prioritize verification and remediation efforts. This includes reviewing and upgrading to version 3.32.0 or later, and implementing additional verification modules for TLS certificates in the proxy.

Why it matters

Defenders should prioritize verifying and upgrading to FreeRDP version 3.32.0 or later due to the improper TLS certificate validation vulnerability in the proxy. This vulnerability allows network-positioned attackers to intercept and impersonate RDP targets, potentially leading to session data interception. Affected systems require prompt verification and remediation.

• Potential impersonation of RDP targets by network-positioned attackers
• Possible interception of proxied session data
• Need for verification and remediation of affected systems
• Potential for self-signed, wrong-hostname certificates to be presented

Technical summary

The vulnerability exists in the proxy component of FreeRDP versions 2.0.0 before 3.32.0. It allows network-positioned attackers to intercept the proxy's outbound connection and present a self-signed, wrong-hostname certificate to impersonate the RDP target and receive proxied session data when no verification module is configured. This improper certificate validation vulnerability in the proxy can lead to session data interception and impersonation of RDP targets. Defenders should prioritize verifying and upgrading to FreeRDP version 3.32.0 or later to address this vulnerability, particularly for network-positioned systems where attackers could intercept and impersonate RDP targets.

Defensive priority

Defenders should prioritize verifying and upgrading to FreeRDP version 3.32.0 or later to address the improper TLS certificate validation vulnerability in the proxy. This is particularly important for network-positioned systems where attackers could intercept and impersonate RDP targets.

Recommended defensive actions

• Verify and upgrade to FreeRDP version 3.32.0 or later
• Review network-positioned systems for potential exposure
• Implement additional verification modules for TLS certificates in the proxy
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and source item provide details on the improper certificate validation vulnerability in FreeRDP's proxy. The vulnerability allows network-positioned attackers to intercept the proxy's outbound connection and impersonate the RDP target by presenting a self-signed, wrong-hostname certificate.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.