CVE-2026-42992

HIGH

MEDIUM Priority: 0.03 BB Relevance: 55/100

Published: 2026-06-09 Modified: 2026-11-10 First seen: 2026-11-10 Status: active

Network No Auth Conf. Impact Integ. Impact

AV: Network

AC: High

PR: None

UI: Required

S: Unchanged

C: High

I: High

A: High

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

Vendor	Product	Version
Microsoft	Windows 10 Version 1607	10.0.14393.0 < 10.0.14393.9234
Microsoft	Windows 10 Version 1809	10.0.17763.0 < 10.0.17763.8880
Microsoft	Windows 10 Version 21H2	10.0.19044.0 < 10.0.19044.7417
Microsoft	Windows 10 Version 22H2	10.0.19045.0 < 10.0.19045.7417
Microsoft	Windows 11 Version 23H2	10.0.22631.0 < 10.0.22631.7219
Microsoft	Windows 11 Version 24H2	10.0.26100.0 < 10.0.26100.8655
Microsoft	Windows 11 Version 25H2	10.0.26200.0 < 10.0.26200.8655
Microsoft	Windows 11 version 23H2	10.0.22631.0 < 10.0.22631.7219
Microsoft	Windows 11 version 26H1	10.0.28000.0 < 10.0.28000.2269
Microsoft	Windows App Client for Windows Desktop	1.00 < 2.0.1193.0
Microsoft	Windows Server 2016	10.0.14393.0 < 10.0.14393.9234
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0 < 10.0.14393.9234
Microsoft	Windows Server 2019	10.0.17763.0 < 10.0.17763.8880
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0 < 10.0.17763.8880
Microsoft	Windows Server 2022	10.0.20348.0 < 10.0.20348.5256
Microsoft	Windows Server 2025	10.0.26100.0 < 10.0.26100.32995
Microsoft	Windows Server 2025 (Server Core installation)	10.0.26100.0 < 10.0.26100.32995

vendor-advisory patch

55 / 100

✓ Network accessible
✓ No authentication

7.5 / 10.0 v3.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

0.46%

Raw Score 0.004610

Percentile 40.5%

Date 2026-11-12

2026-11-12

0.00461

2026-11-10

0.00461

mitre ref →