CVE-2026-26131 — Incorrect Default Permissions in Microsoft NET 10.0

CWE-276 — Incorrect Default Permissions10 documents7 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Microsoft NET 10.0Microsoft NETMicrosoft Microsoft.netcore.app.runtime.linux-arm+5 more
Timeline
PublishedMar 10
Latest updateMar 11

Description

Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages8 packages

▶NVDmicrosoft/net10.0.0 — 10.0.4
▶CVEListV5microsoft/net_10.010.0.0 — 10.0.4

🔴Vulnerability Details

6
OSV
.NET Elevation of Privilege Vulnerability↗2026-03-11
▶
GHSA
.NET Elevation of Privilege Vulnerability↗2026-03-11
▶
OSV
CVE-2026-26131: Incorrect default permissions in↗2026-03-10
▶
OSV
Duplicate Advisory: Microsoft Security Advisory CVE-2026-26131 – .NET Elevation of Privilege Vulnerability↗2026-03-10
▶
GHSA
Duplicate Advisory: Microsoft Security Advisory CVE-2026-26131 – .NET Elevation of Privilege Vulnerability↗2026-03-10
▶

📋Vendor Advisories

2
Microsoft
.NET Elevation of Privilege Vulnerability↗2026-03-10
▶
Red Hat
dotnet: .NET: Privilege escalation via incorrect default permissions↗2026-03-10
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-26131 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-26131 — Incorrect Default Permissions | cvebase