CVE-2021-45489

In NetBSD through 9.2, the IPv6 Flow Label generation algorithm employs a weak cryptographic PRNG.

• CWE-338

• http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2021-001.txt.ascVendor Advisory
• https://arxiv.org/pdf/2112.09604.pdfTechnical Description, Third Party Advisory
• http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2021-001.txt.ascVendor Advisory
• https://arxiv.org/pdf/2112.09604.pdfTechnical Description, Third Party Advisory

Published

Dec 25, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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