CVE-2009-0692
Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before…
- 10.0HighCVSS base score
- 25.8%Exploitation in 30 daysEPSS · top 2.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- ISC DHCP dhclient < 3.1.2p1 - Remote Buffer Overflow (PoC) (Exploit-DB entry) (opens in a new tab)
EDB-ID 9265dos, linuxpublished 27 Jul 2009Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By certcc
- 5 months later
· 5 months later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 25.8% · top 2.0% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
36
- ADV-2009-1891 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- https://www.isc.org/node/468 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35830 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=507717 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35832 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SSRT100018 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 35850 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35785 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- VU#410676 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 35880 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2009:037 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2009-9075 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 40551 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 55819 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 35668 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-1833 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- GLSA-200907-12 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- MDVSA-2009:151 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- RHSA-2009:1136 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 35831 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35829 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2010-1796 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 35841 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:5941 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:10758 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- USN-803-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- NetBSD-SA2009-010 (opens in a new tab)vendor-advisoryx_refsource_NETBSDx_transferred
- https://www.isc.org/downloadables/12 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:1154 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 37342 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35851 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35849 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SSA:2009-195-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- 1022548 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 36457 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2009-8344 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_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)
- EUVD EUVD-2009-0692 (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)
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[](https://cveledger.app/cve/CVE-2009-0692)Record last updated .