Heap-based buffer overflow in RPC Runtime allows an authorized attacker to elevate privileges locally.
History

Fri, 23 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Vendors & Products Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1

Tue, 13 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in RPC Runtime allows an authorized attacker to elevate privileges locally.
Title RPC Runtime Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Weaknesses CWE-122
CPEs cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-10-13T18:59:46.324Z

Updated: 2026-10-23T22:21:31.472Z

Reserved: 2026-08-31T15:57:21.155Z

Link: CVE-2026-83518

cve-icon Vulnrichment

Updated: 2026-10-13T20:40:58.041Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:19:57.633

Modified: 2026-10-13T21:18:24.753

Link: CVE-2026-83518

cve-icon Redhat

No data.