Microsoft Surface Laptop 4 1958 Firmware vulnerabilities

2 CVEs affecting Microsoft Surface Laptop 4 1958 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-48581, published 2026-07-14.

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

• CVE-2025-21194, published 2025-02-11. High severity, CVSS 7.1. EPSS: 0.8% chance of exploitation in the next 30 days. Microsoft Surface Security Feature Bypass Vulnerability
• CVE-2026-48581, published 2026-07-14. High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days. Insufficient granularity of access control in Microsoft Surface allows an authorized attacker to elevate privileges locally.