EUVD-2026-44398Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Remote, unauthenticated, low-complexity network DoS with no user interaction; availability-only impact (A:H) and no confidentiality or integrity effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
Allocation of resources without limits or throttling in .NET Framework allows an unauthorized attacker to deny service over a network.
AnalysisAI
Denial of service in Microsoft .NET (including .NET 8.0/9.0/10.0 and .NET Framework 3.5 through 4.8.1) lets a remote unauthenticated attacker exhaust server resources by sending crafted network traffic that triggers unbounded resource allocation. Rated CVSS 7.5 with availability-only impact, it affects default configurations of network-facing .NET applications; no public exploit identified at time of analysis and it is not listed in CISA KEV.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation against default configurations of network-facing Microsoft .NET and .NET Framework applications, per AV:N/AC:L/PR:N/UI:N. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) describes a fully remote, unauthenticated, low-complexity attack with no user interaction and high availability impact but zero confidentiality or integrity impact - a classic network DoS. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with only network access to an exposed .NET application sends a stream of crafted requests that each cause the runtime to allocate memory, threads, or connections without limit, driving the host to resource exhaustion. Because no authentication or user interaction is required (PR:N/UI:N) and complexity is low (AC:L), the requests can be scripted and repeated to keep the service unavailable. … |
| Remediation | Patch available per vendor advisory: apply the Microsoft security updates referenced at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50648 for each affected .NET and .NET Framework channel via Windows Update or the .NET update packages, and update affected Visual Studio 2022/2026 installations to the latest servicing release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all .NET deployments to identify affected versions (8.0, 9.0, 10.0, and Framework 3.5-4.8.1) and prioritize network-facing applications. …
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External POC / Exploit Code
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