Vulnerability · Published Sep 8, 2026 · Assigned by microsoft
CVE-2026-78463Remote Desktop Client Remote Code Execution Vulnerability
High 8.8
In plain English
A high-severity code injection in Remote Desktop client for Windows Desktop from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 41.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Remote Desktop client for Windows Desktop | 1.2.0.0 – before 1.2.7279.0 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Remote Desktop Client Remote Code Execution Vulnerability vendor-advisory, patch