OpenMcdf Known Vulnerabilities & Fixes
OpenMcdf has 2 known security vulnerabilities in NuGet (.NET). Upgrade to version 3.1.4 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: 3.1.4
Upgrading to 3.1.4 or later resolves all 2 known vulnerabilities in OpenMcdf. Run: dotnet add package OpenMcdf --version 3.1.4
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Security Summary
- 2 affected version ranges have been identified across these 2 advisories.
- 100% of known issues have a published fixed version.
- Remediation: dotnet add package OpenMcdf
Vulnerabilities
2 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Apr 22, 2026, most recently May 19, 2026 (27 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-45785 OpenMcdf: Uncatchable infinite loop in DirectoryTree.TryGetDirectoryEntry on crafted CFB directory cycle | MEDIUM | 1.5.4, 1.5.4.1, 1.5.4.22637, 2.0.5739 (+30 more) | 3.1.4 |
| CVE-2026-41511 OpenMcdf has an Infinite loop DoS via crafted CFB directory cycle | MEDIUM | 1.5.4, 1.5.4.1, 1.5.4.22637, 2.0.5739 (+29 more) | 3.1.3 |
About This Data
Vulnerability data for OpenMcdf 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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