CVE-2000-0553
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.
Exploit likelihood
What each source reports
NVD Score used
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 Low
AV:N/AC:H/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
CVE List No 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-2000-0550 No 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-3hr4-6h39 No 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
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
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 72nd percentile. No source names a fixed version.