What’s Vulnerable › Vulnerabilities

CVE-2000-0553

• Severity: low (CVSS 2.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2000-05-26 · updated 2026-06-16

Description

Race condition in IPFilter firewall 3.4.3 and earlier, when configured with overlapping "return-rst" and "keep state" rules, allows remote attackers to bypass access restrictions.

Affected products

• Darren Reed Ipfilter: 3.3.15, 3.4.3

References

• http://archives.neohapsis.com/archives/bugtraq/2000-05/0326.html
• http://www.osvdb.org/1377
• http://www.securityfocus.com/bid/1308
• https://exchange.xforce.ibmcloud.com/vulnerabilities/4994
• http://archives.neohapsis.com/archives/bugtraq/2000-05/0326.html
• http://www.osvdb.org/1377
• http://www.securityfocus.com/bid/1308
• https://exchange.xforce.ibmcloud.com/vulnerabilities/4994

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