CVE-2025-21355

moderate-risk
Published 2025-02-19

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

Do I need to act?

~
7.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10 High
NETWORK / LOW complexity

Affected Products (1)

Bing

Affected Vendors

43
/ 100
moderate-risk
Severity 29/34 · Critical
Exploitability 9/34 · Low
Exposure 5/34 · Minimal