CVE-2026-70341CWE-416

CVE-2026-70341

High · published September 11, 2026

CVSS v3.1
8.5
EPSS
1%
Percentile
45.2
In the wild
Unconfirmed
What it is

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00549 · 45.2th percentile
Weakness
CWE-416 · Use After Free
Published
2026-09-11T20:17Z
Affected products (4)
ProductVersionsFixed in
microsoft/edgeall versions—
microsoft/edge< 152.0.4191.52152.0.4191.52
microsoft/edge< 152.0.4191.52152.0.4191.52
microsoft/edge_chromium< 152.0.4191.52152.0.4191.52
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70341 · [email protected]
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 1%
    epss
  • 11 SEP 15:50Z
    Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
    cvelistv5