CVE-2006-2444
The snmp_trap_decode function in the SNMP NAT helper for Linux kernel before 2.6.16.18 allows remote attackers to cause a denial of…
- 7.8HighCVSS base score
- 22.1%Exploitation in 30 daysEPSS · top 2.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The snmp_trap_decode function in the SNMP NAT helper for Linux kernel before 2.6.16.18 allows remote attackers to cause a denial of service (crash) via unspecified remote attack vectors that cause failures in snmp_trap_decode that trigger (1) frees of random memory or (2) frees of previously-freed memory (double-free) by snmp_trap_decode as well as its calling function, as demonstrated via certain test cases of the PROTOS SNMP test suite.
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
- Linux Kernel < 2.6.16.18 - Netfilter NAT SNMP Module Remote Denial of Service (Exploit-DB entry) (opens in a new tab)
EDB-ID 1880dos, linuxpublished 5 Jun 2006Verified
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 redhat
- 7 days later
· 7 days later
Published
- 18 years later
· 18 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 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 22.1% · top 2.3% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
34
- RHSA-2006:0437 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SA:2006:042 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1016153 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2006:0617 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20716 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 21605 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2006:047 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 25750 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 21136 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-1183 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20182 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-302-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- ADV-2006-1916 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 22082 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 21983 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2006:064 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 21035 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 22174 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.18 (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:11318 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- RHSA-2006:0580 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- 22822 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20225 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 18081 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- linux-snmp-nathelper-dos(26594) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 21498 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2006-203.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- VU#681569 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.16.y.git%3Ba=commit%3Bh=1db6b5a66e93ff125ab871d6b3f7363412cc87e8 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 22093 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- MDKSA-2006:087 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- DSA-1184 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 21179 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2006-2445 (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-2006-2444)Record last updated .