Vulnerability Intelligence Report
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-85890
Double free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:0.57%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-415 ↗CWE-415: Double Free
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft Edge (Chromium-based) | 1.0.0.0 < 154.0.4258.37 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.573%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-09-04T18:18:19 |
| Published | 2026-10-29T15:09:06 |
| Patch Date | 2026-10-16 |
| Last Updated | 2026-11-10T20:34:24 |
Community Chatter & Buzz