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CVE-2009-2793

4.6 · MEDIUM

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vector…

Published Sep 18, 2009netbsdCWE-264EPSS 0.52%

Overview

CVE-2009-2793 is a medium-severity vulnerability affecting netbsd netbsd. It was published on September 18, 2009 and has a CVSS 2.0 base score of 4.6 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits.

Remediation

Check the references section for vendor advisories and patches from netbsd. Update netbsd 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

VendorProductVersionsStatus
netbsdnetbsd0Affected

References

Refwww.securityfocus.com/archive/1/506531/100/0/threadedRefwww.securityfocus.com/archive/1/506531/100/0/threaded

How CyberStrike helps

Frequently asked questions

What is CVE-2009-2793?

CVE-2009-2793 is a medium-severity vulnerability affecting netbsd netbsd. It was published on September 18, 2009 and has a CVSS 2.0 base score of 4.6 (MEDIUM).

How severe is CVE-2009-2793?

This vulnerability has a CVSS 2.0 base score of 4.6, rated MEDIUM. 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-2009-2793?

Check the references section for vendor advisories and patches from netbsd. Update netbsd 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-2009-2793?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-2793 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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