What’s Vulnerable › Vulnerabilities

CVE-2012-4434

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-01-09 · updated 2026-06-16
• Weakness: CWE-276

Description

fwknop before 2.0.3 allow remote authenticated users to cause a denial of service (server crash) or possibly execute arbitrary code.

Affected products

• fwknop: before 2.0.3 — fixed in 2.0.3

How to fix

Upgrade to a fixed version: fwknop 2.0.3. Check the vendor advisory for mitigations.

References

• http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html
• http://www.openwall.com/lists/oss-security/2012/09/19/2
• http://www.openwall.com/lists/oss-security/2012/09/20/4
• http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html
• http://www.openwall.com/lists/oss-security/2012/09/19/2
• http://www.openwall.com/lists/oss-security/2012/09/20/4

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