CVE-2026-26127

.NET Denial of Service Vulnerability

Published Mar 10, 2026 CVSS 3.1 · 7.5 High EPSS 2.3% KEV · Not listed
Description
Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-73j8-2gch-69rq .NET Denial of Service Vulnerability
Ubuntu USN Ubuntu USN USN-8085-1 .NET vulnerabilities
History
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft bcl.memory
Microsoft windows
CPEs cpe:2.3:a:microsoft:bcl.memory:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft bcl.memory
Microsoft windows
Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:10.1
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Microsoft bcl Memory
Vendors & Products Microsoft bcl Memory
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.
Title .NET Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft .net
Microsoft bcl Memory
Weaknesses CWE-125
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:Bcl_memory:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
Microsoft bcl Memory
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Jun 19, 2026, 6:17 PM
Reserved
Feb 11, 2026, 3:52 PM
Status
Analyzed
Published
Mar 10, 2026, 6:18 PM
Modified
Jun 17, 2026, 10:25 AM
Severity
Moderate
Public date
Mar 10, 2026, 5:05 PM