CVE-2026-67288 FreeRDP before 3.29.0 Denial of Service via smartcard cache
Attackers can crash the FreeRDP client by sending crafted smartcard cache requests with null pointers when smartcard emulation is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-67288?
CVE-2026-67288 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 cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.
Weakness: CWE-476
Which versions are affected by CVE-2026-67288?
It affects 1 product.
Products include Freerdp Freerdp.
How do I fix CVE-2026-67288?
Upgrade to a fixed version.
Is CVE-2026-67288 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67288 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-2026-67288, GHSA-hq8h-rvcv-jvh4, UBUNTU-CVE-2026-67288.