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CVE-2011-2748

7.8 · HIGH

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted DHCP packet.

Published Aug 15, 2011iscCWE-20EPSS 38.77%

Overview

CVE-2011-2748 is a high-severity vulnerability affecting isc dhcp. It was published on August 15, 2011 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted DHCP packet.

Remediation

Check the references section for vendor advisories and patches from isc. Update dhcp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refkb.juniper.net/InfoCenter/index?page=content&id=JSA10761Reflists.fedoraproject.org/pipermail/package-announce/2011-September/065176.htmlReflists.opensuse.org/opensuse-updates/2011-09/msg00014.htmlRefredmine.pfsense.org/issues/1888Refsecunia.com/advisories/45582Refsecunia.com/advisories/45595Refsecunia.com/advisories/45629Refsecunia.com/advisories/45639Refsecunia.com/advisories/45817Refsecunia.com/advisories/45918

How CyberStrike helps

Frequently asked questions

What is CVE-2011-2748?

CVE-2011-2748 is a high-severity vulnerability affecting isc dhcp. It was published on August 15, 2011 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2011-2748?

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-2748?

Check the references section for vendor advisories and patches from isc. Update dhcp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-2748?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-2748 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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