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CVE-2000-0553

Race condition in IPFilter firewall 3.4.3 and earlier, when configured with overlapping "return...

2.6 Low

CVE-2000-0553 is a low vulnerability (CVSS 2.6) in Darren Reed Ipfilter, published May 26, 2000. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.41%, the 73rd percentile. No source names a fixed version.

Severity
2.6 LowCVSS 2.0, NVD
Exploit chance
1.41%EPSS, 73rd percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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.

Exploit likelihood

1.41%Up 0.2 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

NVD Score used2.6

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.

Record
CVE-2000-0553
CVSS 2.0
2.6 LowAV:N/AC:H/Au:N/C:N/I:P/A:N
Updated
2026-11-02
CVE ListNo score

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.

Record
CVE-2000-0553
Updated
2026-11-02
EUVDEUVD-2000-0550No score

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.

Record
EUVD-2000-0550
Updated
2026-11-03
GitHub AdvisoriesGHSA-wmhx-3hr4-6h39No score

Race condition in IPFilter firewall 3.4.3 and earlier, when configured with overlapping "return...

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.

Record
GHSA-wmhx-3hr4-6h39
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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