CVE-2026-110830 FreeRDP before 3.32.0 Denial of Service via Serial IRP_MJ_CREATE
A malicious RDP server can exhaust file descriptors in FreeRDP clients, causing a denial of service via assertion failure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-110830?
CVE-2026-110830 is a high-severity denial of service vulnerability in Freerdp Freerdp, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreeRDP before 3.32.0 fails to close prior serial handles in serial_process_irp_create, allowing a malicious RDP server to exhaust file descriptors. Attackers can send repeated serial IRP_MJ_CREATE requests to accumulate descriptors and terminate the client at the CommReadFile FD_SETSIZE assertion.
Weakness: CWE-400
Which versions are affected by CVE-2026-110830?
It affects 1 product.
Products include Freerdp Freerdp.
How do I fix CVE-2026-110830?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-110830 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110830 exists.
Other vulnerabilities in Freerdp Freerdp
- CVE-2021-37594 Other in n/a
- CVE-2021-37595 Other in n/a
- CVE-2026-67305 FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr
- CVE-2026-66402 FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass
- CVE-2026-67289 FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection
Sources
Also known as DEBIAN-CVE-2026-110830, GHSA-5v64-xvh3-p6jj, GHSA-mqxv-c882-m8w9, UBUNTU-CVE-2026-110830.