CVE-2012-5521: Debian Linux

Medium severity, CVSS 6.5. EPSS: 1.5% chance of exploitation in the next 30 days.

quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• Quagga Quagga: version 0.99.21 only
• Red Hat Enterprise Linux: version 5.0 only; version 6.0 only

Published 2019-11-25. Last modified 2026-06-16.