What is CVE-2026-64621?

CVE-2026-64621 is a high-severity vulnerability in Freerdp, classified under Double Free. CVSS score: 7.3/10. Published 2026-07-20.

How severe is CVE-2026-64621?

High severity. CVSS v3 base score is 7.3 out of 10.

Double Free in Freerdp

CVE-2026-64621

FreeRDP before 3.28.0 (affected 3.x through 3.27.1) contains a double-free vulnerability in freerdp_client_rdp_file_apply_to_settings() (client/common/file.c) when parsing the selectedmonitors field of a .rdp connection file. The MonitorId…

Vulnerability class: Double Free

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H.

Affected products

Freerdp — versions 0, 3.28.0

Weakness classification (CWE)

CWE-415 — Double Free

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-64621?: CVE-2026-64621 is a high-severity vulnerability in Freerdp, classified under Double Free. CVSS score: 7.3/10. Published 2026-07-20.
How severe is CVE-2026-64621?: High severity. CVSS v3 base score is 7.3 out of 10.