Vulnerability · Published Oct 17, 2026 · Assigned by VulnCheck
CVE-2026-111880FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset
High 7.4
In plain English
A high-severity out-of-bounds write 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 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | freerdp | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:8 | freerdp | 2:2.11.7-15.el8_10 | ALSA-2026:94510 |
| AlmaLinux:9 | freerdp | 2:2.11.7-7.el9_8.9 | ALSA-2026:93592 |
| AlmaLinux:10 | freerdp-devel | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:8 | freerdp-devel | 2:2.11.7-15.el8_10 | ALSA-2026:94510 |
| AlmaLinux:9 | freerdp-devel | 2:2.11.7-7.el9_8.9 | ALSA-2026:93592 |
| AlmaLinux:10 | freerdp-libs | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:8 | freerdp-libs | 2:2.11.7-15.el8_10 | ALSA-2026:94510 |
| AlmaLinux:9 | freerdp-libs | 2:2.11.7-7.el9_8.9 | ALSA-2026:93592 |
| AlmaLinux:10 | freerdp-server | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:10 | libwinpr | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:8 | libwinpr | 2:2.11.7-15.el8_10 | ALSA-2026:94510 |
| AlmaLinux:9 | libwinpr | 2:2.11.7-7.el9_8.9 | ALSA-2026:93592 |
| AlmaLinux:10 | libwinpr-devel | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:8 | libwinpr-devel | 2:2.11.7-15.el8_10 | ALSA-2026:94510 |
| AlmaLinux:9 | libwinpr-devel | 2:2.11.7-7.el9_8.9 | ALSA-2026:93592 |
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-111880 |
| Debian:13 | freerdp3 | no fix listed | DEBIAN-CVE-2026-111880 |
| Debian:14 | freerdp3 | 3.32.0+dfsg-1 | DEBIAN-CVE-2026-111880 |
| Rocky Linux:10 | freerdp | 2:3.32.2-1.el10_2 | RLSA-2026:94514 |
| Rocky Linux:8 | freerdp | 2:2.11.7-15.el8_10 | RLSA-2026:94510 |
| Rocky Linux:9 | freerdp | 2:2.11.7-7.el9_8.9 | RLSA-2026:93592 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-111880 |
| Ubuntu:24.04:LTS | freerdp3 | 3.32.0+dfsg-0ubuntu0.24.04.1 | UBUNTU-CVE-2026-111880 |
| Ubuntu:26.04:LTS | freerdp3 | 3.32.0+dfsg-0ubuntu0.26.04.1 | UBUNTU-CVE-2026-111880 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
References
- GitHub Security Advisory (GHSA-cmgx-558f-vh67) vendor-advisory
- VulnCheck Advisory: FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset third-party-advisory