CVE-2026-78463
Remote Desktop Client Remote Code Execution Vulnerability
CVE-2026-78463 is a high vulnerability (CVSS 8.8) in Microsoft Remote Desktop Client, published September 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 59th percentile. No source names a fixed version.
- Severity
- 8.8 HighCVSS 3.1, CVE List
- Exploit chance
- 0.86%EPSS, 59th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Remote Desktop Client Remote Code Execution Vulnerability
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-78463- CVSS 3.1
- 8.8 High
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 - Weakness
- CWE-94
- Updated
- 2026-11-10
EUVDEUVD-2026-73299
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-73299- CVSS 3.1
- 8.8 High
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 - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-pgp6-8xfj-whr8
Improper control of generation of code ('code injection') in Remote Desktop Client allows an...
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- Record
GHSA-pgp6-8xfj-whr8- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-78463- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.