CVE-2026-109680

medium

Description

FreeRDP 3.18.0 before 3.32.0 has a heap-based out-of-bounds write in freerdp_interruptible_get_line, which shrinks the buffer to 32 bytes while keeping a pre-filled suggested username's length as its write offset. A malicious or compromised ARM routing service can return a long redirectedUsername that reaches the CLI credential prompt, crashing the client when the user types input.

References

Advisories
More

https://www.vulncheck.com/advisories/freerdp-3.18.0-before-3.32.0-heap-out-of-bounds-write-via-arm-redirected-username

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4ww8-3vqm-jgcf

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98702

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-20

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

CVSS v4

Base Score: 6

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00266