CVE-2026-47653

CVE-2026-47653

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-416 — Use After Free

References

secure@microsoft.com

Frequently asked questions

What is CVE-2026-47653?: CVE-2026-47653 is a high-severity vulnerability, classified under Use After Free. CVSS score: 8.8/10. Published 2026-06-09.
How severe is CVE-2026-47653?: High severity. CVSS v3 base score is 8.8 out of 10.