CVE-2026-109949
FreeRDP 3.0.0 before 3.32.0 PIN Brute-Force via Virtual Smartcard
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Reserved
- Oct 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-307 Improper Restriction of Excessive Authentication Attempts
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
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 Smartcardthird-party-advisory
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