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CVE-2009-4873

10.0 · HIGH

Stack-based buffer overflow in the HTTP server in Rhino Software Serv-U Web Client 9.0.0.5 allows remote attackers to cause a denial of service (server crash) or execute arbitrary code via a long S…

Published May 26, 2010rhinosoftCWE-119EPSS 20.55%

Overview

CVE-2009-4873 is a high-severity vulnerability affecting rhinosoft serv-u. It was published on May 26, 2010 and has a CVSS 2.0 base score of 10.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Stack-based buffer overflow in the HTTP server in Rhino Software Serv-U Web Client 9.0.0.5 allows remote attackers to cause a denial of service (server crash) or execute arbitrary code via a long Session cookie.

Remediation

Check the references section for vendor advisories and patches from rhinosoft. Update serv-u 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

References

Refsecunia.com/advisories/37228Refwww.rangos.de/ServU-ADV.txtRefwww.securityfocus.com/bid/36895Refwww.vupen.com/english/advisories/2009/3116Refsecunia.com/advisories/37228Refwww.rangos.de/ServU-ADV.txtRefwww.securityfocus.com/bid/36895Refwww.vupen.com/english/advisories/2009/3116

How CyberStrike helps

Frequently asked questions

What is CVE-2009-4873?

CVE-2009-4873 is a high-severity vulnerability affecting rhinosoft serv-u. It was published on May 26, 2010 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2009-4873?

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-4873?

Check the references section for vendor advisories and patches from rhinosoft. Update serv-u 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-2009-4873?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-4873 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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