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CVE-2006-5646

5.0 · MEDIUM

Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows rem…

Published Nov 1, 2006sophosCWE-119EPSS 17.92%

Overview

CVE-2006-5646 is a medium-severity vulnerability affecting sophos anti-virus. It was published on November 1, 2006 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.

Remediation

Check the references section for vendor advisories and patches from sophos. Update anti-virus 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
sophosendpoint_security0Affected

References

Reflabs.idefense.com/intelligence/vulnerabilities/display.php?id=452Refsecunia.com/advisories/22591Refsecuritytracker.com/id?1017132Refwww.securityfocus.com/bid/20816Refwww.sophos.com/support/knowledgebase/article/7609.htmlRefwww.vupen.com/english/advisories/2006/4239Reflabs.idefense.com/intelligence/vulnerabilities/display.php?id=452Refsecunia.com/advisories/22591Refsecuritytracker.com/id?1017132Refwww.securityfocus.com/bid/20816

How CyberStrike helps

Frequently asked questions

What is CVE-2006-5646?

CVE-2006-5646 is a medium-severity vulnerability affecting sophos anti-virus. It was published on November 1, 2006 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2006-5646?

This vulnerability has a CVSS 2.0 base score of 5.0, 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-2006-5646?

Check the references section for vendor advisories and patches from sophos. Update anti-virus 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-2006-5646?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-5646 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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