CVE-2016-9401
5.5 · MEDIUMOverview
CVE-2016-9401 is a medium-severity vulnerability affecting gnu bash. It was published on January 23, 2017 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.
Remediation
Check the references section for vendor advisories and patches from gnu. Update bash 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 |
|---|---|---|---|
| gnu | bash | >= 0, < 4.4 | Affected |
References
Frequently Asked Questions
What is CVE-2016-9401?
CVE-2016-9401 is a medium-severity vulnerability affecting gnu bash. It was published on January 23, 2017 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2016-9401?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2016-9401?
Check the references section for vendor advisories and patches from gnu. Update bash 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-2016-9401?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-9401 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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