What’s Vulnerable › Vulnerabilities

CVE-2012-5363

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-20 · updated 2026-06-16
• Weakness: CWE-400

Description

The IPv6 implementation in FreeBSD and NetBSD (unknown versions, year 2012 and earlier) allows remote attackers to cause a denial of service via a flood of ICMPv6 Neighbor Solicitation messages, a different vulnerability than CVE-2011-2393.

Affected products

• FreeBSD: before 9.2 — fixed in 9.2
• Netbsd: before 6.0.2 — fixed in 6.0.2

How to fix

Upgrade to a fixed version: FreeBSD 9.2; Netbsd 6.0.2. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2012/10/10/12
• https://www.securityfocus.com/bid/56170/info
• http://www.openwall.com/lists/oss-security/2012/10/10/12
• https://www.securityfocus.com/bid/56170/info

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