CVE-2007-4440
7.5 · HIGHStack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string.
Overview
CVE-2007-4440 is a high-severity vulnerability affecting pmail mercury_mail_transport_system. It was published on August 21, 2007 and has a CVSS 2.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 2.0 base score of 7.5, 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 MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.
Remediation
Check the references section for vendor advisories and patches from pmail. Update mercury_mail_transport_system 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 |
|---|---|---|---|
| pmail | mercury_mail_transport_system | 0 | Affected |
References
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Frequently asked questions
What is CVE-2007-4440?
CVE-2007-4440 is a high-severity vulnerability affecting pmail mercury_mail_transport_system. It was published on August 21, 2007 and has a CVSS 2.0 base score of 7.5 (HIGH).
How severe is CVE-2007-4440?
This vulnerability has a CVSS 2.0 base score of 7.5, 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-2007-4440?
Check the references section for vendor advisories and patches from pmail. Update mercury_mail_transport_system 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-2007-4440?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-4440 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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