CVE-2026-83893

MediumCVSS 5.5/10Last modified Oct 21, 2026

Description

Exposure of sensitive system information to an unauthorized control sphere in Windows Clipboard User Service allows an authorized attacker to disclose information locally.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-497

Affected software

VendorProductVersions
MicrosoftWindows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.7807
MicrosoftWindows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.7807
MicrosoftWindows 11 version 23H2>= 10.0.22631.0, < 10.0.22631.7652
MicrosoftWindows 11 Version 23H2>= 10.0.22631.0, < 10.0.22631.7652
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.9711
MicrosoftWindows 11 Version 25H2>= 10.0.26200.0, < 10.0.26200.9711
MicrosoftWindows 11 version 26H1>= 10.0.28000.0, < 10.0.28000.3231
MicrosoftWindows 11 Version 26H2>= 10.0.26300.0, < 10.0.26300.9711
MicrosoftWindows Server 2019>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows Server 2022>= 10.0.20348.0, < 10.0.20348.5761
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.33650
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.33650

References

Timeline

Published
Oct 13, 2026
Last modified
Oct 21, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-838947.0Use after free in RPC Runtime allows an authorized attacker to elevate privileges locally.CVE-2026-838956.8Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-838967.8Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally.CVE-2026-838974.7Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker tCVE-2026-838985.5Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.CVE-2026-838997.0Improper privilege management in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-83907.3Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150.0.3.CVE-2026-839007.0Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-839017.0Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-839027.8Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally.CVE-2026-839037.8Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally.CVE-2026-839045.5Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.
CVE-2026-83893: Medium severity, CVSS 5.5 | Vulnix