CVE-2025-21355: high-severity vulnerability in Microsoft Bing
Microsoft Bing Remote Code Execution Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 1.7%
Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C
Affected products
Microsoft · Microsoft BingRelated CVEs — Microsoft Bing
In the same product, most dangerous first.