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CVE-2026-70159

ASP.NET Core Denial of Service Vulnerability

HIGH
7.5
CVSS Score
Published: October 13, 2026 at 07:00 PM UTC
Updated: October 29, 2026 at 03:14 PM UTC
4 products affected across 1 vendorVisual Studio 2022Microsoft Visual Studio 2026 Version 18.10Microsoft.aspnetcore.signalr.common

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70159

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHmicrosoft
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-770

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