Riskcovery

CVE-2026-26171

.NET Denial of Service Vulnerability

State
Published
Severity
7.5 High
Published
Apr 14, 2026
Updated
Oct 15, 2026
Reserved
Feb 11, 2026

Read the record on cve.org

Description

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

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Cmicrosoft
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat-SADP

Weaknesses

  • CWE-400 Uncontrolled Resource Consumption
  • CWE-611 Improper Restriction of XML External Entity Reference
  • CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Affected Products

ProductVersions
.NET 10.0Microsoft
  • 10.0.0 to before 10.0.6Affected
.NET 8.0Microsoft
  • 8.0.0 to before 8.0.26Affected
.NET 9.0Microsoft
  • 9.0.0 to before 9.0.15Affected
PowerShell 7.5Microsoft
  • 7.5.0 to before 7.5.6Affected
PowerShell 7.6Microsoft
  • 7.6.0 to before 7.6.1Affected

References

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