CVE-2026-67304 FreeRDP before 3.29.0 NULL Dereference via smartcard cleanup
Attackers can crash the FreeRDP process by sending malformed smartcard IRP requests, causing a null pointer dereference during cleanup.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-67304?
CVE-2026-67304 is a high-severity vulnerability in Freerdp Freerdp, published on 1 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard device control request cleanup when reader-state decoding fails. Attackers can send malformed smartcard IRP requests with non-zero cReaders and truncated reader-state data to crash the process via null pointer access in free_reader_states functions.
Weakness: CWE-476
Which versions are affected by CVE-2026-67304?
It affects 1 product.
Products include Freerdp Freerdp.
How do I fix CVE-2026-67304?
Upgrade to a fixed version.
Is CVE-2026-67304 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67304 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-2026-67304, GHSA-6x5p-r76q-h5g9, GHSA-78jj-45vh-jpm5, UBUNTU-CVE-2026-67304.