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Fencer Intel
medium 4.3

CVE-2012-6151 json

Net-SNMP 5.7.1 and earlier, when AgentX is registering to handle a MIB and processing GETNEXT requests, allows remote attackers to cause a…

published 2013-12-13 12 y ago modified 2026-06-16 4 mo ago also EUVD-2012-6007

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.5%
EPSS 9.5% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Net-SNMP 5.7.1 and earlier, when AgentX is registering to handle a MIB and processing GETNEXT requests, allows remote attackers to cause a denial of service (crash or infinite loop, CPU consumption, and hang) by causing the AgentX subagent to timeout.

Patch / fix

  • net-snmp Debian 14, Debian 13, Debian 12 5.7.2.1~dfsg-3

debian advisories DEBIAN-CVE-2012-6151

  • net-snmp RHEL 5 1:5.3.2.2-22.el5_10.1
  • net-snmp-libs RHEL 5 1:5.3.2.2-22.el5_10.1
  • net-snmp-perl RHEL 5 1:5.3.2.2-22.el5_10.1
  • net-snmp-utils RHEL 5 1:5.3.2.2-22.el5_10.1
  • net-snmp RHEL 6 1:5.5-44.el6_4.4
  • net-snmp-libs RHEL 6 1:5.5-44.el6_4.4
  • net-snmp-perl RHEL 6 1:5.5-44.el6_4.4
  • net-snmp-utils RHEL 6 1:5.5-44.el6_4.4

red hat advisories RHSA-2014:0322RHBA-2013:1150

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-6151 updated cvss 4.3

net-snmp: snmpd crashes/hangs when AgentX subagent times-out

  • Red Hat Enterprise Linux (v. 5 server) net-snmp 5.3.2.2-22.el5_10.1, net-snmp-libs 5.3.2.2-22.el5_10.1, net-snmp-perl 5.3.2.2-22.el5_10.1, net-snmp-utils 5.3.2.2-22.el5_10.1 Red Hat Enterprise Linux Desktop (v. 5 client) net-snmp 5.3.2.2-22.el5_10.1, net-snmp-libs 5.3.2.2-22.el5_10.1, net-snmp-perl 5.3.2.2-22.el5_10.1, net-snmp-utils 5.3.2.2-22.el5_10.1
    fixed: vendor fix RHSA-2014:0322
  • Red Hat Enterprise Linux Desktop (v. 6) net-snmp 5.5-44.el6_4.4, net-snmp-libs 5.5-44.el6_4.4 Red Hat Enterprise Linux Desktop Optional (v. 6) net-snmp 5.5-44.el6_4.4, net-snmp-perl 5.5-44.el6_4.4, net-snmp-utils 5.5-44.el6_4.4, net-snmp-python 5.5-44.el6_4.4
    fixed: vendor fix RHBA-2013:1150
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) net-snmp 5.3.2.2-22.el5_10.1
    fixed: vendor fix RHSA-2014:0322
  • Red Hat Enterprise Linux HPC Node (v. 6) net-snmp 5.5-44.el6_4.4, net-snmp-libs 5.5-44.el6_4.4, net-snmp-perl 5.5-44.el6_4.4, net-snmp-utils 5.5-44.el6_4.4, net-snmp-python 5.5-44.el6_4.4 Red Hat Enterprise Linux HPC Node Optional (v. 6) net-snmp 5.5-44.el6_4.4 Red Hat Enterprise Linux Server (v. 6) net-snmp 5.5-44.el6_4.4, net-snmp-libs 5.5-44.el6_4.4, net-snmp-perl 5.5-44.el6_4.4, net-snmp-utils 5.5-44.el6_4.4, net-snmp-python 5.5-44.el6_4.4 Red Hat Enterprise Linux Workstation (v. 6) net-snmp 5.5-44.el6_4.4, net-snmp-libs 5.5-44.el6_4.4, net-snmp-perl 5.5-44.el6_4.4, net-snmp-utils 5.5-44.el6_4.4, net-snmp-python 5.5-44.el6_4.4
    fixed: vendor fix RHBA-2013:1150
  • Red Hat Enterprise Linux 7 net-snmp, net-snmp-gui, net-snmp-libs, net-snmp-perl, net-snmp-utils, net-snmp-python, +2 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-38854)
  2. Published

Exploit prediction

9.45% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-38854 Net-SNMP - SNMPD AgentX Subagent Timeout Denial of Service dos, 2012-09-05
  • securityfocus.com http://www.securityfocus.com/bid/64048 referenced PoC, tagged "exploit" by a source, unverified
  • sourceforge.net http://sourceforge.net/p/net-snmp/bugs/2411/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.