What’s Vulnerable › Vulnerabilities

CVE-2000-0990

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2000-12-19 · updated 2026-09-23

Description

cmd5checkpw 0.21 and earlier allows remote attackers to cause a denial of service via an "SMTP AUTH" command with an unknown username.

Affected products

• Krzysztof Dabrowski Cmd5Checkpw: 0.20, 0.21

References

• http://archives.neohapsis.com/archives/bugtraq/2000-10/0258.html
• http://members.elysium.pl/brush/cmd5checkpw/changes.html
• http://www.securityfocus.com/bid/1809
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5382
• http://archives.neohapsis.com/archives/bugtraq/2000-10/0258.html
• http://members.elysium.pl/brush/cmd5checkpw/changes.html
• http://www.securityfocus.com/bid/1809
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5382

Get alerted when CVE-2000-0990 or the next vulnerability affects your stack