Log in / Sign up

Vulnerability details

CVE-2026-66322

Microsoft Edge

Microsoft Edge (Chromium-based) Spoofing Vulnerability

CVSS 3.1
7.1High

Official description

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

CVSS scores

ScoreVersionSourceVector
7.1High 3.1 CVEProject cvelistV5 (CNA) (microsoft) CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C

Affected products

VendorProductVersionsSource
Microsoft Microsoft Edge (Chromium-based) 1.0.0.0 ≤ v < 151.0.4129.59 CVEProject cvelistV5 (CNA)

References and advisories

1
Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published
2026-08-04
Last updated
2026-11-01
State
Published
Assigner (CNA)
microsoft

Exploit prediction (EPSS)

0.22%
Probability of exploitation in 30 days
13.4%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-346
    Origin Validation Error