How severe is CVE-2004-1006?

CVE-2004-1006 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2004-1006 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-1006?

CVE-2004-1006 primarily affects Isc Dhcpd. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-1006?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2004-1006 published?

CVE-2004-1006 was published on 2005-03-01 and last updated on 2026-06-16.

CVE-2004-1006

CVE-2004-1006 is a critical-severity vulnerability in Isc Dhcpd with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Isc Dhcpd
Published: 2005-03-01
Last modified: 2026-06-16

Description

Format string vulnerability in the log functions in dhcpd for dhcp 2.x allows remote DNS servers to execute arbitrary code via certain DNS messages, a different vulnerability than CVE-2002-0702.

Frequently asked questions

What is CVE-2004-1006?: Format string vulnerability in the log functions in dhcpd for dhcp 2.x allows remote DNS servers to execute arbitrary code via certain DNS messages, a different vulnerability than CVE-2002-0702.
How severe is CVE-2004-1006?: CVE-2004-1006 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-1006 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1006?: CVE-2004-1006 primarily affects Isc Dhcpd. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1006?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2004-1006 published?: CVE-2004-1006 was published on 2005-03-01 and last updated on 2026-06-16.

References

Affected products (22)

cpe:2.3:a:isc:dhcpd:2.0.pl5:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0:rc12:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0:rc4:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc10:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc11:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc12:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc13:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc14:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc2:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc3:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc4:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc5:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc6:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc7:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc8:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0.1:rc9:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0_b2pl9:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0_b2pl23:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0_pl1:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcpd:3.0_pl2:*:*:*:*:*:*:*

More vulnerabilities in Isc Dhcpd

CVE-2004-0460 — Critical (CVSS 10.0): Buffer overflow in the logging capability for the DHCP daemon (DHCPD) for ISC DHCP 3.0.1rc12 and 3.0.1rc13 allows…
CVE-2004-0461 — Critical (CVSS 10.0): The DHCP daemon (DHCPD) for ISC DHCP 3.0.1rc12 and 3.0.1rc13, when compiled in environments that do not provide the…
CVE-2002-0702 — Critical (CVSS 10.0): Format string vulnerabilities in the logging routines for dynamic DNS code (print.c) of ISC DHCP daemon (DHCPD) 3 to…
CVE-2003-0026 — High (CVSS 7.5): Multiple stack-based buffer overflows in the error handling routines of the minires library, as used in the NSUPDATE…
CVE-2019-6470 — Medium (CVSS 6.5): There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6…
CVE-2006-3122 — Medium (CVSS 5.0): The supersede_lease function in memory.c in ISC DHCP (dhcpd) server 2.0pl5 allows remote attackers to cause a denial of…

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