Microsoft.Build.Tasks.Core Known Vulnerabilities & Fixes
Microsoft.Build.Tasks.Core has 2 known security vulnerabilities in NuGet (.NET). Upgrade to version 18.0.0-preview-25476-107 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 18.0.0-preview-25476-107
Upgrading to 18.0.0-preview-25476-107 or later resolves all 2 known vulnerabilities in Microsoft.Build.Tasks.Core. Run: dotnet add package Microsoft.Build.Tasks.Core --version 18.0.0-preview-25476-107
Is Microsoft.Build.Tasks.Core in your project?
Check if you're affected and upgrade to 18.0.0-preview-25476-107 to stay secure.
Security Summary
- 13 affected version ranges have been identified across these 2 advisories.
- 100% of known issues have a published fixed version.
- Remediation: dotnet add package Microsoft.Build.Tasks.Core
Vulnerabilities
2 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed May 13, 2025, most recently Oct 15, 2025 (155 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2025-55247 Microsoft Security Advisory CVE-2025-55247 | .NET Denial of Service Vulnerability | HIGH | 17.15.0-preview-25277-114, 17.14.5, 17.14.7, 17.14.8 (+10 more) | 18.0.0-preview-25476-107, 17.14.28, 17.12.50 (+3 more) |
| CVE-2025-26646 Microsoft.Build.Tasks.Core .NET Spoofing Vulnerability | HIGH | 15.8.166, 15.9.20, 16.0.461, 16.10.0 (+38 more) | 15.9.30, 16.11.6, 17.8.29 (+4 more) |
About This Data
Vulnerability data for Microsoft.Build.Tasks.Core is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related NuGet (.NET) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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