Detections
Analytics

CVE-2025-21355

critical

Description

Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21355

https://www.theregister.com/2025/02/20/microsoft_patch_power_pages/

https://www.bleepingcomputer.com/news/security/microsoft-fixes-power-pages-zero-day-bug-exploited-in-attacks/

https://thehackernews.com/2025/02/microsoft-patches-actively-exploited.html

Details

Source: Mitre, NVD

Published: 2025-02-19

Updated: 2025-03-05

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00946