NULL pointer dereference in Freerdp
CVE-2026-67288
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.
EPSS: 0.003 (27.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Freerdp — versions 0, 3.29.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Patch, Vendor Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, Third Party Advisory, third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Not Applicable)
Frequently asked questions
- What is CVE-2026-67288?
- CVE-2026-67288 is a high-severity vulnerability in Freerdp, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-08-01.
- How severe is CVE-2026-67288?
- High severity. CVSS v3 base score is 7.5 out of 10.