CVE detail
CVE-2026-23666
Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 18.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
5 source links · newest first
Executive Summary updated
vendormsrc.microsoft.comApr 15, 2026, 2:00 PM- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23666.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comApr 14, 2026, 6:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2458271bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comApr 14, 2026, 6:16 PM - https://access.redhat.com/security/cve/CVE-2026-23666access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 14, 2026, 6:16 PM - The April 2026 Security Update ReviewZero Day Initiative
at some of the more interesting updates for this month, starting with the vulnerability being exploited in the wild: - CVE-2026-32201 - Microsoft SharePoint Server Spoofing Vulnerability Microsoft doesn’t provide a lot of information about this bug, but Spoofing bugs in SharePoint often manifest as cross-site scripting (XSS) bugs. They do note that at
vendorwww.thezdi.comApr 14, 2026, 5:49 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
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- CVE-2026-47304CVSS 8.1 · High
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- CVE-2026-50647CVSS 7.5 · High
Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
- CVE-2026-50411CVSS 7.5 · High
Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
- CVE-2026-50368CVSS 7.5 · High
Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.