CVE-2026-97801

.NET Framework Tampering Vulnerability

Published Oct 13, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
Title .NET Framework Tampering Vulnerability
First Time appeared Microsoft
Microsoft .net
Microsoft .net Framework
Weaknesses CWE-1287
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
Microsoft .net Framework
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 8:47 PM
Reserved
Sep 25, 2026, 4:41 AM
Status
Awaiting Analysis
Published
Oct 13, 2026, 7:22 PM
Modified
Oct 13, 2026, 11:19 PM