What’s Vulnerable › Vulnerabilities

CVE-2022-33991

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-15 · updated 2026-06-17
• Weakness: CWE-290

Description

dproxy-nexgen (aka dproxy nexgen) forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.

Affected products

• Dproxy-Nexgen Project Dproxy-Nexgen: all versions

References

• https://sourceforge.net/projects/dproxy/
• https://www.openwall.com/lists/oss-security/2022/08/14/3
• https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner
• https://sourceforge.net/projects/dproxy/
• https://www.openwall.com/lists/oss-security/2022/08/14/3
• https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner

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