Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2000-0553

12
FAUCET Score

CVE-2000-0553 describes a race condition in IPFilter firewall versions 3.4.3 and earlier. This vulnerability allows remote attackers to bypass access restrictions when the firewall is configured with overlapping "return-rst" and "keep state" rules. The severity is rated as LOW (CVSS 2.6), indicating a network-based attack with high complexity, resulting in a potential partial integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.3.15CPE matchmatch criteria
cpe:2.3:a:darren_reed:ipfilter:3.3.15:*:*:*:*:*:*:*
3.4.3CPE matchmatch criteria
cpe:2.3:a:darren_reed:ipfilter:3.4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

AV:N/AC:H/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 57th percentile among its peer group of 1,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/bugtraq/2000-05/0326.html
ExploitPatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/4994
osvdb.org / 1377
securityfocus.com / bid/1308
PatchVendor Advisory