CVE-2015-4000
3.7 · LOWOverview
CVE-2015-4000 is a low-severity vulnerability affecting openssl openssl. It was published on May 21, 2015 and has a CVSS 3.1 base score of 3.7 (LOW).
This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
Remediation
Check the references section for vendor advisories and patches from openssl. Update openssl 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 |
|---|---|---|---|
| openssl | openssl | 1.0.1 | Affected |
| apple | iphone_os | 0 | Affected |
| apple | mac_os_x | 0 | Affected |
| oracle | sparc-opl_service_processor | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2015-4000?
CVE-2015-4000 is a low-severity vulnerability affecting openssl openssl. It was published on May 21, 2015 and has a CVSS 3.1 base score of 3.7 (LOW).
How severe is CVE-2015-4000?
This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2015-4000?
Check the references section for vendor advisories and patches from openssl. Update openssl 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-2015-4000?
CyberStrike's AI-powered security agents can automatically detect CVE-2015-4000 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.
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