Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network.
History

Thu, 12 Feb 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft windows
CPEs cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft windows

Wed, 11 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 10 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Description Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network.
Title .NET Spoofing Vulnerability
First Time appeared Microsoft
Microsoft .net
Weaknesses CWE-166
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-02-10T17:51:23.973Z

Updated: 2026-02-12T19:11:21.682Z

Reserved: 2025-12-11T21:02:05.731Z

Link: CVE-2026-21218

cve-icon Vulnrichment

Updated: 2026-02-11T15:29:15.295Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-10T18:16:22.967

Modified: 2026-02-12T17:35:25.617

Link: CVE-2026-21218

cve-icon Redhat

No data.