What’s Vulnerable › Vulnerabilities

CVE-2026-67288: FreeRDP before 3.29.0 Denial of Service via smartcard cache

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-01 · updated 2026-09-03
• Weakness: CWE-476

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.

Affected products

• FreeRDP: before 3.29.0 — fixed in 3.29.0

How to fix

Upgrade to a fixed version: FreeRDP 3.29.0. Check the vendor advisory for mitigations.

References

• https://github.com/FreeRDP/FreeRDP/commit/5370fb26fbf034ecd11d3026b6ad639b5fff493f
• https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-ph3q-f9w8-7jf3
• https://www.vulncheck.com/advisories/freerdp-before-denial-of-service-via-smartcard-cache
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7f

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