What is CVE-2026-68579?

CVE-2026-68579 is a critical-severity vulnerability in Freerdp, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2026-08-02.

How severe is CVE-2026-68579?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Buffer overflow in Freerdp

CVE-2026-68579

FreeRDP before 3.30.0 (<= 3.29.0) contains a heap-based buffer overflow in the Windows clipboard client's CliprdrStream_Read function (client/Windows/wf_cliprdr.c). When an OLE paste consumer (e.g. explorer.exe) calls IStream::Read with a…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:H.

Affected products

Freerdp — versions 0, 3.30.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2026-68579?: CVE-2026-68579 is a critical-severity vulnerability in Freerdp, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2026-08-02.
How severe is CVE-2026-68579?: Critical severity. CVSS v3 base score is 9.6 out of 10.