CVE-2026-109255CWE-122

CVE-2026-109255

Medium · published October 12, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

FreeRDP 3.0.0 before 3.32.0 contains an integer truncation vulnerability in license_check_stream_length that allows a malicious RDP server to trigger a heap buffer overflow on 32-bit clients. Attackers can send a crafted SERVER_LICENSE_REQUEST with a large scopeCount that bypasses length checks, causing out-of-bounds writes leading to denial of service or remote code execution.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS v4.0
6.1 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00456 · 38.6th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-12T21:17Z
References (3)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hxw3-57rq-3v4m · [email protected]https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-heap-buffer-overflow-via-license-check-stream-length · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hxw3-57rq-3v4m · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:04Z
    FreeRDP 3.0.0 before 3.32.0 heap buffer overflow via license_check_stream_length
    cvelistv5
  • 12 OCT 16:04Z
    FreeRDP 3.0.0 before 3.32.0 heap buffer overflow via license_check_stream_length
    cvelistv5