Vulnerability · Published Aug 1, 2026 · Assigned by VulnCheck
CVE-2026-67288FreeRDP before 3.29.0 Denial of Service via smartcard cache
High 7.5
In plain English
A high-severity null pointer dereference in FreeRDP from FreeRDP. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | freerdp | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 |
| AlmaLinux:8 | freerdp | 2:2.11.7-12.el8_10 | ALSA-2026:62571 |
| AlmaLinux:9 | freerdp | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 |
| AlmaLinux:10 | freerdp-devel | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 |
| AlmaLinux:8 | freerdp-devel | 2:2.11.7-12.el8_10 | ALSA-2026:62571 |
| AlmaLinux:9 | freerdp-devel | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 |
| AlmaLinux:10 | freerdp-libs | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 |
| AlmaLinux:8 | freerdp-libs | 2:2.11.7-12.el8_10 | ALSA-2026:62571 |
| AlmaLinux:9 | freerdp-libs | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 |
| AlmaLinux:10 | freerdp-server | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 |
| AlmaLinux:10 | libwinpr | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 |
| AlmaLinux:8 | libwinpr | 2:2.11.7-12.el8_10 | ALSA-2026:62571 |
| AlmaLinux:9 | libwinpr | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 |
| AlmaLinux:10 | libwinpr-devel | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 |
| AlmaLinux:8 | libwinpr-devel | 2:2.11.7-12.el8_10 | ALSA-2026:62571 |
| AlmaLinux:9 | libwinpr-devel | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 |
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-67288 |
| Debian:13 | freerdp3 | no fix listed | DEBIAN-CVE-2026-67288 |
| Debian:14 | freerdp3 | 3.29.0+dfsg-1 | DEBIAN-CVE-2026-67288 |
| Rocky Linux:10 | freerdp | 2:3.10.3-12.el10_2.10 | RLSA-2026:61378 |
| Rocky Linux:8 | freerdp | 2:2.11.7-12.el8_10 | RLSA-2026:62571 |
| Rocky Linux:9 | freerdp | 2:2.11.7-7.el9_8.6 | RLSA-2026:61379 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-67288 |
| Ubuntu:24.04:LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.24.04.1 | UBUNTU-CVE-2026-67288 |
| Ubuntu:26.04:LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.26.04.1 | UBUNTU-CVE-2026-67288 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-ph3q-f9w8-7jf3) vendor-advisory
- Patch Commit patch
- Patch Commit patch
- VulnCheck Advisory: FreeRDP before 3.29.0 Denial of Service via smartcard cache third-party-advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7f exploit