What’s Vulnerable › Vulnerabilities

CVE-2006-5551

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2006-10-26 · updated 2026-06-16

Description

Stack-based buffer overflow in QK SMTP 3.01 and earlier might allow remote attackers to execute arbitrary code via a long argument to the RCPT TO command.

Affected products

• Qksoft Qk Smtp: through 3.0.1

References

• http://secunia.com/advisories/22563
• http://securitytracker.com/id?1017114
• http://www.securityfocus.com/bid/20681
• http://www.vupen.com/english/advisories/2006/4169
• https://www.exploit-db.com/exploits/2625
• http://secunia.com/advisories/22563
• http://securitytracker.com/id?1017114
• http://www.securityfocus.com/bid/20681
• http://www.vupen.com/english/advisories/2006/4169
• https://www.exploit-db.com/exploits/2625

Get alerted when CVE-2006-5551 or the next vulnerability affects your stack