CVE-2026-57978CWE-346

CVE-2026-57978

Medium · published July 26, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
10.9
In the wild
Unconfirmed
What it is

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00212 · 10.9th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2026-07-26T22:18Z
Affected products (1)
ProductVersionsFixed in
microsoft/edge_chromium< 150.0.4078.99150.0.4078.99
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57978 · [email protected]
EPSS history
Timeline
  • 26 JUL 17:17Z
    Microsoft Edge (Chromium-based) Spoofing Vulnerability
    cvelistv5