What’s Vulnerable › Vulnerabilities

CVE-1999-0599

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-01-01 · updated 2026-06-16

Description

A network intrusion detection system (IDS) does not properly handle packets with improper sequence numbers.

References

• http://www.robertgraham.com/mirror/Ptacek-Newsham-Evasion-98.html
• http://www.robertgraham.com/mirror/Ptacek-Newsham-Evasion-98.html

Get alerted when CVE-1999-0599 or the next vulnerability affects your stack