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CVE-1999-1109

5.0 · MEDIUM
Published Dec 22, 1999 sendmail EPSS 7.17% (94th pctl)

Overview

CVE-1999-1109 is a medium-severity vulnerability affecting sendmail sendmail. It was published on December 22, 1999 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

Sendmail before 8.10.0 allows remote attackers to cause a denial of service by sending a series of ETRN commands then disconnecting from the server, while Sendmail continues to process the commands after the connection has been terminated.

Remediation

Check the references section for vendor advisories and patches from sendmail. Update sendmail 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
sendmail sendmail 0 Affected

Frequently Asked Questions

What is CVE-1999-1109?

CVE-1999-1109 is a medium-severity vulnerability affecting sendmail sendmail. It was published on December 22, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-1999-1109?

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-1999-1109?

Check the references section for vendor advisories and patches from sendmail. Update sendmail 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-1999-1109?

CyberStrike's AI-powered security agents can automatically detect CVE-1999-1109 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.