CVE-2026-66315

EUVD-2026-52527
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.6%
Affected Products (NVD)
VendorProductVersion
microsoftedge_chromium
𝑥
< 151.0.4129.59
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66315