.NET Elevation of Privilege VulnerabilityVendor advisorypatch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58641 CVE-2026-58641
HIGH
.NET Elevation of Privilege Vulnerability
Record summary
CVE-2026-58641 has a selected CVSS score of 7.8 (high).
Description
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
Description source: GitHub Advisory
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 12, 2026 · Source: CVE List
Affected products and versions
3| Product | Source | Version range | Status |
|---|---|---|---|
.NET 10.0Browse Microsoft / .NET 10.0 | CVE List | 10.0.0 to < 10.0.11 | affected |
.NET 8.0Browse Microsoft / .NET 8.0 | CVE List | 8.0.0 to < 8.0.30 | affected |
.NET 9.0Browse Microsoft / .NET 9.0 | CVE List | 9.0.0 to < 9.0.19 | affected |
References
2nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-58641