Unrated severityNVD Advisory· Published May 26, 2000· Updated Jun 16, 2026

CVE-2000-0553

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

Phildev/Ipfilter2 versions
cpe:2.3:a:darren_reed:ipfilter:3.3.15:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:darren_reed:ipfilter:3.3.15:*:*:*:*:*:*:*
- cpe:2.3:a:darren_reed:ipfilter:3.4.3:*:*:*:*:*:*:*
IPFilter/IPFilterllm-fuzzy
Range: <=3.4.3

Patches

Vulnerability mechanics

References

www.securityfocus.com/bid/1308nvdPatchVendor Advisory
archives.neohapsis.com/archives/bugtraq/2000-05/0326.htmlnvdExploitPatchVendor Advisory
www.osvdb.org/1377nvd
exchange.xforce.ibmcloud.com/vulnerabilities/4994nvd

News mentions

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