Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before 5.4.2.1, 5.3 before 5.3.2.3,…

Description

Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before 5.4.2.1, 5.3 before 5.3.2.3, and 5.2 before 5.2.5.1 allows remote attackers to cause a denial of service (crash) via a crafted SNMP GETBULK request, which triggers a heap-based buffer overflow, related to the number of responses or repeats.

Scores

EPSS (exploitation in 30 days)

5.1% · top 7.7% of all CVEs (3 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a
• CWE-190 Integer Overflow or Wraparound (opens in a new tab)All about CWE-190 and its CVEs
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (42)

• 33631 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 32664 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 32560 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://support.apple.com/kb/HT3549 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SR:2009:003 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://www.vmware.com/security/advisories/VMSA-2009-0001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2009-0301 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 33746 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2008:0971 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 35074 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 35679 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:9860 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• APPLE-SA-2009-05-12 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• 33003 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 262908 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 32539 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 32711 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-1663 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• oval:org.mitre.oval:def:6353 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• netsnmp-netsnmpcreatesubtreecache-dos(46262) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• http://net-snmp.svn.sourceforge.net/viewvc/net-snmp/tags/Ext-5-2-5-1/net-snmp/agent/snmp_agent.c?r1=17271&r2=17272&pathrev=17272 (opens in a new tab)x_refsource_MISCx_transferred
• [oss-security] 20081031 New net-snmp DoS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• APPLE-SA-2010-12-16-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• TA09-133A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
• http://sourceforge.net/forum/forum.php?forum_id=882903 (opens in a new tab)x_refsource_CONFIRMx_transferred
• oval:org.mitre.oval:def:6171 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 33095 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2009-1297 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 1021129 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• http://support.apple.com/kb/HT4298 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0315 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2008-467.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2008-2973 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 32020 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 33821 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2009-1771 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• GLSA-200901-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• 20081112 rPSA-2008-0315-1 net-snmp net-snmp-client net-snmp-server net-snmp-utils (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• HPSBMA02447 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• USN-685-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• ADV-2008-3400 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• MDVSA-2008:225 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_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-2008-4309](https://trackcve.app/badge/CVE-2008-4309.svg)](https://trackcve.app/cve/CVE-2008-4309)

Record last updated 28 May 2026, 18:05 UTC.