CVE-2013-4206
6.8 · MEDIUMOverview
CVE-2013-4206 is a medium-severity vulnerability affecting putty putty. It was published on August 19, 2013 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
Remediation
Check the references section for vendor advisories and patches from putty. Update putty 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 |
|---|---|---|---|
| simon_tatham | putty | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2013-4206?
CVE-2013-4206 is a medium-severity vulnerability affecting putty putty. It was published on August 19, 2013 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
How severe is CVE-2013-4206?
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2013-4206?
Check the references section for vendor advisories and patches from putty. Update putty 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-2013-4206?
CyberStrike's AI-powered security agents can automatically detect CVE-2013-4206 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
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