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CVE-2000-0553
Race condition in IPFilter firewall 3.4.3 and earlier, when configured with overlapping "return-rst" and "keep state" rules, allows remote…
Low2.6EPSS 1.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.6 | AV:N/AC:H/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.4% · top 27% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (4)
- ipfilter-firewall-race-condition(4994) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1308 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20000525 Security Vulnerability in IPFilter 3.3.15 and 3.4.3 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 1377 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .