CVE-2012-3494
2.1 · LOWOverview
CVE-2012-3494 is a low-severity vulnerability affecting citrix xenserver. It was published on November 23, 2012 and has a CVSS 2.0 base score of 2.1 (LOW).
This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
Remediation
Check the references section for vendor advisories and patches from citrix. Update xenserver 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 |
|---|---|---|---|
| citrix | xenserver | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2012-3494?
CVE-2012-3494 is a low-severity vulnerability affecting citrix xenserver. It was published on November 23, 2012 and has a CVSS 2.0 base score of 2.1 (LOW).
How severe is CVE-2012-3494?
This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. 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-2012-3494?
Check the references section for vendor advisories and patches from citrix. Update xenserver 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-2012-3494?
CyberStrike's AI-powered security agents can automatically detect CVE-2012-3494 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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