CVE-2026-110831 FreeRDP CVE debrief

Who should care

Defenders responsible for FreeRDP deployments, especially those using drive redirection, should assess exposure and prioritize patching or mitigation to prevent potential resource exhaustion or system instability. This includes reviewing affected product scope, planning updates or mitigations, and monitoring for suspicious activity. Security teams and vulnerability management teams should also review the vulnerability and implement compensating controls if

Why it matters

Defenders should prioritize patching or mitigating CVE-2026-110831, as it allows a malicious RDP server to leak resources when drive redirection is enabled, potentially leading to resource exhaustion or system instability.

• Potential resource exhaustion due to leaked file objects and handles
• Increased risk of denial-of-service or system instability

Technical summary

The vulnerability exists in the drive_process_irp_create function, which registers an opened local file in the drive dictionary before applying the allocation size. If the allocation size is set to UINT64_MAX, the seek fails, and the file object and operating-system handle are leaked. This issue allows a malicious RDP server connected to a client with drive redirection enabled to leak resources, potentially leading to resource exhaustion or system instability. Defenders should prioritize patching or mitigating this vulnerability, especially in environments where drive redirection is used.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability, especially in environments where drive redirection is used.

Recommended defensive actions

• Patch FreeRDP to version 3.32.0 or later
• Disable drive redirection if not required
• Monitor for suspicious RDP activity
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information about the vulnerability. The source item and supplemental sources offer additional context. The vulnerability has been confirmed in FreeRDP versions 3.13.0 before 3.32.0, and defenders should verify affected deployments and plan for updates or mitigations. Evidence limits suggest that the vulnerability could lead to resource exhaustion if exploited, but specific impact details are limited.

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.