ISC DHCP · Lifecycle Status

ISC DHCP End of Life (EOL) Dates & Support Timeline

Complete end-of-life dates, support windows, and security status for all ISC DHCP versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.

Latest Active

—

— series

Next EOL

—

None upcoming

Active Versions

of 4 total

EOL Versions

no longer patched

Medium Risk

EOL Risk Score™ How is this calculated? →

EOL Recency

40/40

Attack Surface

10/30 Medium tier

CISA KEV Exposure

0/20 Not in KEV

Extended Support

0/10 Available

EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build. Methodology →

Release Cycle Timeline

■ EOL ■ Warning ■ Active ┊ Today

All Versions

Version	Latest Release	Release Date	EOL Date	Days	Status
4.1	4.1-ESV-R16-P2	Dec 19, 2008	Oct 5, 2022	1357 days past EOL	EOL
4.2	4.2.8	Jul 15, 2010	Mar 5, 2015	4128 days past EOL	EOL
4.3	4.3.6-P1	Feb 4, 2014	Feb 28, 2018	3037 days past EOL	EOL
4.4	4.4.3-P1	Jan 31, 2018	Oct 5, 2022	1357 days past EOL	EOL

What does ISC DHCP end of life mean for your organization?

When a version of ISC DHCP reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.

The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.

Organizations running EOL ISC DHCP should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.

Extended Support Options

If you cannot migrate immediately, extended support vendors provide continued security patches for EOL ISC DHCP versions. This is a bridge, not a permanent solution — plan your migration in parallel.

endoflife.ai

Need Extended Support?

We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.

Frequently Asked Questions

What is the end-of-life date for ISC DHCP?

See the full table above for all ISC DHCP version EOL dates.

When is the ISC DHCP support end date?

Each ISC DHCP version has its own support end date — see the table above for every version's date.

What is the latest supported version of ISC DHCP?

The latest active version of ISC DHCP is —. Always verify against the table above as support windows can change.

What happens when ISC DHCP reaches end of life?

When ISC DHCP reaches end of life, the vendor stops issuing security patches. Any CVEs disclosed after the EOL date accumulate indefinitely with no patch path — creating an ever-growing attack surface that most vulnerability scanners do not flag.

How do I check if I'm running an EOL version of ISC DHCP?

Check your current version against the table above. If your version's EOL date has passed, you are running unsupported software. You can also use the endoflife.ai Stack Scanner to check your entire dependency file at once.

Is there extended support available for EOL ISC DHCP versions?

Some vendors offer extended support for EOL software. Contact the original vendor or check with enterprise support providers for options.

Related Products

Data from endoflife.date API · endoflife.date · Generated at build time · How we source data →