CVE-2021-20217
7.5 · HIGHOverview
CVE-2021-20217 is a high-severity vulnerability affecting privoxy privoxy. It was published on March 25, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A flaw was found in Privoxy in versions before 3.0.31. An assertion failure triggered by a crafted CGI request may lead to denial of service. The highest threat from this vulnerability is to system availability.
Remediation
Check the references section for vendor advisories and patches from privoxy. Update privoxy to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| privoxy | privoxy | >= 0, < 3.0.31 | Affected |
Frequently Asked Questions
What is CVE-2021-20217?
CVE-2021-20217 is a high-severity vulnerability affecting privoxy privoxy. It was published on March 25, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-20217?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-20217?
Check the references section for vendor advisories and patches from privoxy. Update privoxy to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-20217?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-20217 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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