by Kastro
Paper/Archive/CVE-2025-21355

CVE-2025-21355

Microsoft Microsoft Bing — Microsoft Bing Remote Code Execution Vulnerability

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 77.1.771 × 2015.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
Microsoft Bing-–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
microsoft (CNA)8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2025-21355