CVE-2021-45487: Netbsd

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

In NetBSD through 9.2, the IPv4 ID generation algorithm does not use appropriate cryptographic measures.

Affected products

• Netbsd Netbsd: up to and including 9.2

Published 2021-12-25. Last modified 2026-06-17.