CVE-2026-85892

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

At a glance

Severity: HIGH 7.8
EPSS: EPSS 0.20 % · percentile 10 (2026-10-27)
State: PUBLISHED
Published: 2026-09-14
Updated: 2026-10-26
Assigner: microsoft
NVD status: Analyzed

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges locally.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H	NVD · secure@microsoft.com (Secondary)

Weaknesses (CWE)

CWE-362

European references

ENISA EUVD · EUVD-2026-77693
GCVE · GCVE-0-2026-85892

CERT-FR advisories

CERTFR-2026-AVI-1173 — Multiples vulnérabilités dans Microsoft Edge · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:* < 152.0.4191.66

Affected products

Product	Versions
Microsoft · Microsoft Edge (Chromium-based)	affected 1.0.0.0 < 152.0.4191.66

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85892

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD