CVE-2025-21355

Microsoft Bing Remote Code Execution Vulnerability

Published Feb 19, 2025 CVSS 3.1 · 8.6 High EPSS 1.7% KEV · Not listed
Description
Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-4643 Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft bing
CPEs cpe:2.3:a:microsoft:bing:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft bing
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Missing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a network
Title Microsoft Bing Remote Code Execution Vulnerability
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 8.6, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Feb 13, 2026, 7:44 PM
Reserved
Dec 11, 2024, 12:29 AM
Status
Analyzed
Published
Feb 19, 2025, 11:15 PM
Modified
Jun 17, 2026, 8:43 AM