Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-88097

CVE-2026-88097HIGH

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   N  C  H  H  H    7.8   .0026   15.7     —

AFFECTED
  Product                          Versions   Fixed
  Microsoft Edge (Chromium-based)  1.0.0.0 –  —

TIMELINE
  Sep 9   Reserved by microsoft
  Sep 18  Published (CNA: microsoft)
  Sep 24  RESCORED — CVE-2026-88097 (Microsoft Edge (Chromium-based)). CVSS 8.1 → 7.8 (NVD).

CWE-416 · CNA: microsoft · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 9, 2026	Reserved	Reserved by microsoft
September 18, 2026	Published	Published (CNA: microsoft)
September 24, 2026	RESCORED	RESCORED — CVE-2026-88097 (Microsoft Edge (Chromium-based)). CVSS 8.1 → 7.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Microsoft Edge (Chromium-based)	—	1.0.0.0	—

Weaknesses

CWE-416

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88097 [vendor-advisory, patch]

Authoritative record: CVE-2026-88097 at cve.org

Vendors: microsoft

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-88097 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.