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2976 articles · 110847 vulns · 36/41 feeds (7d)
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7.5
CVE-2026-26171EXPLOITEDPATCHED
Microsoft · .NET 10.0

.NET Denial of Service Vulnerability

Description

Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.

Affected Products

VendorProductVersions
Microsoft.NET 10.010.0.0, 8.0.0, 9.0.0

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
microsoft.netmitre_affected90%

References

  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171(vendor-advisory, patch)

Related News (3 articles)

Tier D
BleepingComputer5h ago
Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days
→ No new info (linked only)
Tier C
VulDB5h ago
CVE-2026-26171 | Microsoft .NET prior 8.0.26/9.0.15/10.0.6 resource consumption
→ No new info (linked only)
Tier A
Microsoft MSRC9h ago
CVE-2026-26171 .NET Denial of Service Vulnerability
→ No new info (linked only)
CVSS 3.17.5 HIGH
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
10.0.68.0.269.0.15
CWECWE-400, CWE-611
PublishedApr 14, 2026
Last enriched5h agov2
Trending Score71
Source articles3
Independent3
Info Completeness9/14
Missing: title, epss, kev, iocs, mitre_attack

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HIGHCVE-2026-32071EXP
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HIGHCVE-2026-32093EXP
Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
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HIGHCVE-2026-32075EXP
Windows UPnP Device Host Elevation of Privilege Vulnerability
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HIGHCVE-2026-26154EXP
Windows Server Update Service (WSUS) Tampering Vulnerability
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Verification

State: verified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 14, 2026
Discovered by ZDM
Apr 14, 2026
Updated: description, exploitAvailable, activelyExploited
Apr 14, 2026
Actively Exploited
Apr 14, 2026
Exploit Available
Apr 14, 2026
Patch Available
Apr 14, 2026

Version History

v2
Last enriched 5h ago
v2Tier A5h ago

Added a detailed description of the vulnerability and marked it as actively exploited with an exploit available.

descriptionexploitAvailableactivelyExploited
via Microsoft MSRC
v15h ago

Initial creation