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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).
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NVD contains:
CVE Vulnerabilities
40597
Checklists
129
US-CERT Alerts
191
US-CERT Vuln Notes
2369
OVAL Queries
2517
CPE Names
20312

Last updated: Tue Feb 09 09:15:51 EST 2010

CVE Publication rate: 10.1

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Vulnerability Workload Index: 5.78

About Us
NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

National Cyber-Alert System

Vulnerability Summary for CVE-1999-0531

Original release date:01/01/1999
Last revised:08/01/2008
Source: US-CERT/NIST

Overview

** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: None. Reason: this candidate is solely about a configuration that does not directly introduce security vulnerabilities, so it is more appropriate to cover under the Common Configuration Enumeration (CCE). Notes: the former description is: "An SMTP service supports EXPN, VRFY, HELP, ESMTP, and/or EHLO."

Solution

This functionality should be disabled, because these commands can be used for attack reconnaissance.}