Microsoft System.security.cryptography.pkcs vulnerabilities

2 CVEs affecting Microsoft System.security.cryptography.pkcs, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-84008, published 2026-10-13.

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

• CVE-2026-70162, published 2026-10-13. Medium severity, CVSS 5.9. EPSS: 0.8% chance of exploitation in the next 30 days. A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial…
• CVE-2026-84008, published 2026-10-13. High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days. Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.