VulnerabilityModified
CVE-2026-23666
Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.
HIGH 7.5EPSS 1.33%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.33% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-755, CWE-366
- Affected
- microsoft/.net framework
- Source
- secure@microsoft.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.