How severe is CVE-2009-1892?

CVE-2009-1892 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-1892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1892?

CVE-2009-1892 primarily affects Isc Dhcp. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1892?

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

When was CVE-2009-1892 published?

CVE-2009-1892 was published on 2009-07-17 and last updated on 2026-06-16.

CVE-2009-1892

CVE-2009-1892 is a medium-severity vulnerability in Isc Dhcp with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-16.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 9% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-16
Affected product: Isc Dhcp
Published: 2009-07-17
Last modified: 2026-06-16

Description

dhcpd in ISC DHCP 3.0.4 and 3.1.1, when the dhcp-client-identifier and hardware ethernet configuration settings are both used, allows remote attackers to cause a denial of service (daemon crash) via unspecified requests.

Frequently asked questions

What is CVE-2009-1892?: dhcpd in ISC DHCP 3.0.4 and 3.1.1, when the dhcp-client-identifier and hardware ethernet configuration settings are both used, allows remote attackers to cause a denial of service (daemon crash) via unspecified requests.
How severe is CVE-2009-1892?: CVE-2009-1892 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-1892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1892?: CVE-2009-1892 primarily affects Isc Dhcp. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1892 published?: CVE-2009-1892 was published on 2009-07-17 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:isc:dhcp:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0.4_b1:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0.4_b2:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.0.4_b3:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:3.1.1:*:*:*:*:*:*:*

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