What’s Vulnerable › Vulnerabilities

CVE-2006-2421

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-05-17 · updated 2026-06-16

Description

Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute arbitrary code via long SSH_MSG_KEXINIT messages, which may cause an overflow when being logged. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Affected products

• Pragma Systems Fortressssh: through 4.0.7.20

References

• http://secunia.com/advisories/20114
• http://www.securityfocus.com/bid/17991
• http://www.vupen.com/english/advisories/2006/1820
• https://exchange.xforce.ibmcloud.com/vulnerabilities/26498
• http://secunia.com/advisories/20114
• http://www.securityfocus.com/bid/17991
• http://www.vupen.com/english/advisories/2006/1820
• https://exchange.xforce.ibmcloud.com/vulnerabilities/26498

Get alerted when CVE-2006-2421 or the next vulnerability affects your stack