CVE-2025-34451
7.8 · HIGHOverview
CVE-2025-34451 is a high-severity vulnerability affecting proxychains-ng_project proxychains-ng. It was published on December 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
rofl0r/proxychains-ng versions up to and including 4.17 and prior to commit cc005b7 contain a stack-based buffer overflow vulnerability in the function proxy_from_string() located in src/libproxychains.c. When parsing crafted proxy configuration entries containing overly long username or password fields, the application may write beyond the bounds of fixed-size stack buffers, leading to memory corruption or crashes. This vulnerability may allow denial of service and, under certain conditions, could be leveraged for further exploitation depending on the execution environment and applied mitigations.
Remediation
Check the references section for vendor advisories and patches from proxychains-ng_project. Update proxychains-ng 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 |
|---|---|---|---|
| proxychains-ng_project | proxychains-ng | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2025-34451?
CVE-2025-34451 is a high-severity vulnerability affecting proxychains-ng_project proxychains-ng. It was published on December 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2025-34451?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-34451?
Check the references section for vendor advisories and patches from proxychains-ng_project. Update proxychains-ng 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-2025-34451?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-34451 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.
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