Answer in brief
CVE-2026-45490 records a High severity (CVSS 7.8) vulnerability in .NET SDK Elevation of Privilege Vulnerability. The current sources do not mark it as known exploited. The current feed maps Microsoft/.NET 10.0 (generic), Microsoft/.NET 8.0 (generic), Microsoft/.NET 9.0 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Microsoft/.NET 10.0 (generic), Microsoft/.NET 8.0 (generic), Microsoft/.NET 9.0 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Microsoft/.NET 10.0generic | >=10.0.0 <10.0.9 | 10.0.9 |
| Microsoft/.NET 8.0generic | >=8.0.0 <8.0.28 | 8.0.28 |
| Microsoft/.NET 9.0generic | >=9.0.0 <9.0.17 | 9.0.17 |
Published upstream
Jun 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
A flaw was found in the .NET SDK dotnet.exe workload command on Windows. Insufficient access controls on a named pipe could allow a local attacker to perform arbitrary file creation or truncation operations with the privileges of another local user. This issue may lead to privilege escalation and unauthorized access, modification, or destruction of data belonging to the targeted user.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-45490 records a High severity (CVSS 7.8) vulnerability in .NET SDK Elevation of Privilege Vulnerability. The current sources do not mark it as known exploited. The current feed maps Microsoft/.NET 10.0 (generic), Microsoft/.NET 8.0 (generic), Microsoft/.NET 9.0 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Microsoft/.NET 10.0 (generic), Microsoft/.NET 8.0 (generic), Microsoft/.NET 9.0 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Microsoft/.NET 10.0generic | >=10.0.0 <10.0.9 | 10.0.9 |
| Microsoft/.NET 8.0generic | >=8.0.0 <8.0.28 | 8.0.28 |
| Microsoft/.NET 9.0generic | >=9.0.0 <9.0.17 | 9.0.17 |
Published upstream
Jun 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
A flaw was found in the .NET SDK dotnet.exe workload command on Windows. Insufficient access controls on a named pipe could allow a local attacker to perform arbitrary file creation or truncation operations with the privileges of another local user. This issue may lead to privilege escalation and unauthorized access, modification, or destruction of data belonging to the targeted user.
Quoted source text, attributed separately from HOL analysis.