CVE-2026-85880

Descriptive record received from OpenCTI and minimised for consultation in the Intel portal.

Sharing: TLP:CLEAR
Confidence: 100
Source: The CVE Program
Updated: 26/09/2026 02:44

Description

Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.

STIX identifiervulnerability--403fa317-e88d-592c-8941-59a0ea7bcc27

First observation-

Last observation-

Known relationships23

Aliases and classifications

CWE-122CWE-908Heap-based Buffer OverflowUse of Uninitialized Resource

Minimised technical details

No raw data

cvss score: 7.8
cvss severity: HIGH
cvss vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
cisa kev: True

Provenance

Public references

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880

EudorIA correlation

Intel catalogue

The vulnerability is also available in the EudorIA editorial catalogue.

Open EudorIA analysis

Presence in OpenCTI describes an intelligence correlation and does not, by itself, constitute evidence of compromise, legal attribution or operational guidance applicable without context verification.