CVE-2026-111375 FreeRDP 3.0.0 before 3.32.0 Out-of-Bounds Read via RAIL Window Title
A malicious RDP server can cause a FreeRDP client crash or leak memory by sending non-NUL-terminated window titles in RAIL updates.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-111375?
CVE-2026-111375 is a medium-severity memory corruption vulnerability in Freerdp Freerdp, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreeRDP from 3.0.0 before 3.32.0 contains an out-of-bounds read vulnerability in the Windows RAIL client that allows malicious RDP servers to trigger heap over-reads by sending non-NUL-terminated window titles. Attackers can send a full-length WINDOW_ORDER_FIELD_TITLE update that wf_rail_window_common passes to SetWindowTextW, corrupting titles or crashing the client.
Weakness: CWE-125
Which versions are affected by CVE-2026-111375?
It affects 1 product.
Products include Freerdp Freerdp.
How do I fix CVE-2026-111375?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111375 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111375 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-2026-111375, GHSA-3rvr-qvx8-rj23, GHSA-gmj9-g5r3-8gvf, UBUNTU-CVE-2026-111375.