What’s Vulnerable › Vulnerabilities

CVE-2000-0331

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2000-04-20 · updated 2026-06-16

Description

Buffer overflow in Microsoft command processor (CMD.EXE) for Windows NT and Windows 2000 allows a local user to cause a denial of service via a long environment variable, aka the "Malformed Environment Variable" vulnerability.

Affected products

• Microsoft Terminal Server: all versions
• Microsoft Windows 2000: all versions
• Microsoft Windows Nt: 4.0

References

• http://archives.neohapsis.com/archives/bugtraq/2000-04/0147.html
• http://www.securityfocus.com/bid/1135
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-027
• http://archives.neohapsis.com/archives/bugtraq/2000-04/0147.html
• http://www.securityfocus.com/bid/1135
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-027

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