ISC dhcrelay (dhcp-relay) 3.0rc9 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (packet…

Description

ISC dhcrelay (dhcp-relay) 3.0rc9 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (packet storm) via a certain BOOTP packet that is forwarded to a broadcast MAC address, causing an infinite loop that is not restricted by a hop count.

Scores

EPSS (exploitation in 30 days)

8.0% · top 5.2% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (9)

• CLSA-2003:616 (opens in a new tab)vendor-advisoryx_refsource_CONECTIVAx_transferred
• VU#149953 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
• DSA-245 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• TLSA-2003-26 (opens in a new tab)vendor-advisoryx_refsource_TURBOx_transferred
• RHSA-2003:034 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 20030219 [OpenPKG-SA-2003.012] OpenPKG Security Advisory (dhcpd) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• dhcp-dhcrelay-dos(11187) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 20030115 DoS against DHCP infrastructure with isc dhcrelay (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 6628 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2003-0039](https://trackcve.app/badge/CVE-2003-0039.svg)](https://trackcve.app/cve/CVE-2003-0039)

Record last updated 8 Aug 2024, 01:43 UTC.