Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck
CVE-2026-109949FreeRDP 3.0.0 before 3.32.0 PIN Brute-Force via Virtual Smartcard
Medium 6.5
In plain English
A medium-severity security flaw in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset attempts, enabling unbounded online brute-forcing of the configured smartcard PIN.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-109949 |
| Debian:13 | freerdp3 | no fix listed | DEBIAN-CVE-2026-109949 |
| Debian:14 | freerdp3 | 3.32.0+dfsg-1 | DEBIAN-CVE-2026-109949 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-109949 |
| Ubuntu:24.04:LTS | freerdp3 | 3.32.0+dfsg-0ubuntu0.24.04.1 | UBUNTU-CVE-2026-109949 |
| Ubuntu:26.04:LTS | freerdp3 | 3.32.0+dfsg-0ubuntu0.26.04.1 | UBUNTU-CVE-2026-109949 |
Affected products (as reported)
Weakness: CWE-307 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
References
- GitHub Security Advisory (GHSA-chh2-527f-x255) vendor-advisory
- VulnCheck Advisory: FreeRDP 3.0.0 before 3.32.0 PIN Brute-Force via Virtual Smartcard third-party-advisory