CVE-2026-70309

EUVD-2026-67853
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10.56%
Affected Products (NVD)
VendorProductVersion
microsoftedge_chromium
𝑥
< 150.0.4078.65
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70309