What is CVE-2026-67301?

CVE-2026-67301 is a high-severity vulnerability in Freerdp, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-08-01.

How severe is CVE-2026-67301?

High severity. CVSS v3 base score is 7.5 out of 10.

Out-of-bounds Read in Freerdp

CVE-2026-67301

FreeRDP before 3.29.0 contains out-of-bounds read vulnerabilities in the async update message proxy for the PolygonSC and PolygonCB primary drawing orders. When AsyncUpdate is enabled (e.g., xfreerdp /async-update), update_message_PolygonS…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Freerdp — versions 0, 3.29.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2026-67301?: CVE-2026-67301 is a high-severity vulnerability in Freerdp, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-08-01.
How severe is CVE-2026-67301?: High severity. CVSS v3 base score is 7.5 out of 10.