A security feature bypass vulnerability exists when Microsoft browsers improperly handle requests of different origins, aka 'Microsoft Browsers Security Feature Bypass Vulnerability'.
Severity
CVSS 3.0
4.3 medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS
4.5% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)