CVE-2026-114046 FreeRDP CVE debrief

Who should care

Defenders responsible for systems that use FreeRDP 3.0.0 before 3.32.0, especially those that connect to untrusted RDP servers, should assess exposure and prioritize updates. This includes operators, platform administrators, vulnerability management teams, and security teams that need to verify FreeRDP installations and review exposure to untrusted RDP servers.

Why it matters

CVE-2026-114046 is a high-severity vulnerability in FreeRDP 3.0.0 before 3.32.0 that can cause client process crashes. Defenders should prioritize verifying and updating FreeRDP installations, especially for systems connecting to untrusted RDP servers.

• Potential denial of service (DoS) due to client process crashes
• Requires verification of FreeRDP version and exposure to untrusted RDP servers
• Defenders should prioritize updating FreeRDP to version 3.32.0 or later

Technical summary

The vulnerability exists in the smartcard emulation backend of FreeRDP 3.0.0 before 3.32.0. A malicious RDP server can send a crafted reader-state entry with a null szReader, causing strcmp or _wcscmp to crash the client process. This vulnerability can lead to a denial of service (DoS) due to client process crashes. The affected product context is FreeRDP 3.0.0 before 3.32.0, and defenders should prioritize verifying and updating FreeRDP installations, especially for systems that connect to untrusted RDP servers. The vulnerability has a high severity score of 7.1.

Defensive priority

Defenders should prioritize verifying and updating FreeRDP installations to version 3.32.0 or later, especially for systems that connect to untrusted RDP servers.

Recommended defensive actions

• Verify and update FreeRDP installations to version 3.32.0 or later
• Implement network segmentation and access controls for RDP connections
• Monitor RDP connections for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability is confirmed in FreeRDP 3.0.0 before 3.32.0. The CVE Program and NVD provide official records of the vulnerability. Evidence is based on source-provided CVE metadata and official vulnerability assessments. Defenders should verify FreeRDP installations and review exposure to untrusted RDP servers. Limited source detail is available; explicit evidence limits apply.

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.