CVE-2026-97801
.NET Framework Tampering Vulnerability
Published Oct 13, 2026 · updated Oct 14, 2026 · Microsoft Microsoft .NET Framework 3.5
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
Timeline
Detection, updates, and resolution for this record.
Oct 13, 2026 · CIRCL Vulnerability Lookup
Detected
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
Oct 14, 2026 · CIRCL Vulnerability Lookup
Updated
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
Affected
- vendor Microsoft Microsoft .NET Framework 3.5version unspecified
- vendor Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2version unspecified
- vendor Microsoft Microsoft .NET Framework 3.5 AND 4.7.2version unspecified
- vendor Microsoft Microsoft .NET Framework 3.5 AND 4.8version unspecified
- vendor Microsoft Microsoft .NET Framework 3.5 AND 4.8.1version unspecified
- vendor Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2version unspecified
- vendor Microsoft Microsoft .NET Framework 4.8version unspecified
- vendor Microsoft Microsoft .NET Framework 4.8.1version unspecified
Sources
- CIRCL Vulnerability LookupCVE-2026-97801
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
vulnerability.circl.lu - CVE.orgCVE-2026-97801
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-97801
30-day exploitation probability 0.6%
first.org