How severe is CVE-2006-6639?

CVE-2006-6639 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2006-6639 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6639?

CVE-2006-6639 affects Chetcpasswd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-6639?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-6639 published?

CVE-2006-6639 was published on 2006-12-19 and last updated on 2026-06-16.

CVE-2006-6639

CVE-2006-6639 is a medium-severity vulnerability in Chetcpasswd with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Chetcpasswd
Published: 2006-12-19
Last modified: 2026-06-16

Description

Multiple unspecified vulnerabilities in chetcpasswd 2.4.1 allow local users to gain privileges via unspecified vectors related to executing (1) the cp program, (2) the mail program, or (3) the program specified in the post_change configuration line.

Frequently asked questions

What is CVE-2006-6639?: Multiple unspecified vulnerabilities in chetcpasswd 2.4.1 allow local users to gain privileges via unspecified vectors related to executing (1) the cp program, (2) the mail program, or (3) the program specified in the post_change configuration line.
How severe is CVE-2006-6639?: CVE-2006-6639 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2006-6639 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6639?: CVE-2006-6639 affects Chetcpasswd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6639?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-6639 published?: CVE-2006-6639 was published on 2006-12-19 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:chetcpasswd:chetcpasswd:2.4.1:*:*:*:*:*:*:*

More vulnerabilities in Chetcpasswd

CVE-2006-6681 — High (CVSS 7.5): Pedro Lineu Orso chetcpasswd 2.3.3 does not have a rate limit for client requests, which might allow remote attackers…
CVE-2002-2219 — High (CVSS 7.5): chetcpasswd.cgi in Pedro Lineu Orso chetcpasswd before 2.1 allows remote attackers to read the last line of the shadow…
CVE-2002-2220 — Medium (CVSS 6.2): Buffer overflow in Pedro Lineu Orso chetcpasswd before 1.12, when configured for access from 0.0.0.0, allows local…
CVE-2002-2221 — Medium (CVSS 6.2): Untrusted search path vulnerability in Pedro Lineu Orso chetcpasswd 2.4.1 and earlier allows local users to gain…
CVE-2006-6680 — Medium (CVSS 4.6): Pedro Lineu Orso chetcpasswd before 2.3.1 does not document the need for 0400 permissions on /etc/chetcpasswd.allow,…

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