Microsoft APM vulnerabilities

3 CVEs affecting Microsoft APM, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-46383, published 2026-05-15.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-45539, published 2026-05-15. High severity, CVSS 7.4. EPSS: 1.1% chance of exploitation in the next 30 days. Microsoft APM is an open-source, community-driven dependency manager for AI agents. From 0.5.4 to 0.12.4, two primitive integrators in apm-cli enumerate package files with bare Path.glob() /…
• CVE-2026-46383, published 2026-05-15. Medium severity, CVSS 5.5. EPSS: 0.9% chance of exploitation in the next 30 days. Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.13.0, Microsoft APM contains a Windows-specific archive extraction boundary failure in the legacy-bundle…
• CVE-2026-44641, published 2026-05-15. High severity, CVSS 7.1. EPSS: 0.5% chance of exploitation in the next 30 days. Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.8.12, Microsoft APM normalizes marketplace plugins by copying plugin components referenced in…