High severity8.8NVD Advisory· Published Sep 8, 2026· Updated Sep 22, 2026
CVE-2026-78463
CVE-2026-78463
Description
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Affected products
2(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:*range: <1.2.7279
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78463nvdVendor Advisory
News mentions
2- Patch Tuesday - September 2026Rapid7 Blog · Sep 8, 2026
- Massive Microsoft Patch Tuesday September 2026 – 973 Vulnerabilities Fixed, Including 2 Zero-DaysCyber Security News · Sep 8, 2026