Review reviewHigh

CVE-2026-32178

Microsoft .NET 10.0, .NET 8.0, .NET 9.0

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability2.28%

Technical severityCVSS 7.5

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

Product: Microsoft .NET 10.0, .NET 8.0, .NET 9.0
Affected versions: >= 10.0.0 < 10.0.6, >= 8.0 < 8.0.26, >= 8.0.0 < 8.0.26, >= 9.0.0 < 9.0.15, >= 17.12.0 < 17.12.19, >= 17.14.0 < 17.14.30
Fixed versions: 10.0.6, 8.0.26, 9.0.15, 17.12.19, 17.14.30

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Microsoft .NET 10.0, .NET 8.0, .NET 9.0 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.