Is CVE-2006-6679 being actively exploited?

CVE-2006-6679 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-6679?

CVE-2006-6679 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2006-6679

HIGH · CVSS 7.5EPSS 2.1%EU EUVD

Pedro Lineu Orso chetcpasswd before 2.4 relies on the X-Forwarded-For HTTP header when verifying a client's status on an IP address ACL, which allows remote attackers to gain unauthorized access by spoofing this header.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-863
EPSS score: 2.1% (82th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-6662)
Published: December 21, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-6662 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

chetcpasswd project / chetcpasswd

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=394454(Mailing List, Third Party Advisory)
http://marc.info/?l=bugtraq&m=116371297325564&w=2(Mailing List, Third Party Advisory)
http://secunia.com/advisories/22967(Broken Link, Permissions Required, Third Party Advisory)
http://sourceforge.net/project/shownotes.php?group_id=68912&release_id=466649(Product)
http://www.osvdb.org/30544(Broken Link)
http://www.securityfocus.com/bid/21102(Broken Link, Third Party Advisory, VDB Entry)
https://exchange.xforce.ibmcloud.com/vulnerabilities/30451(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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