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Fencer Intel
critical 9.8

CVE-2018-1000116 json

NET-SNMP version 5.7.2 contains a heap corruption vulnerability in the UDP protocol handler that can result in command execution.

published 8y ago modified 4mo ago also EUVD-2018-1843

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.3%
EPSS 6.3% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

NET-SNMP version 5.7.2 contains a heap corruption vulnerability in the UDP protocol handler that can result in command execution.

Patch / fix

  • net-snmp Debian 14, Debian 13, Debian 12 5.7.3+dfsg-1.1

debian advisories DEBIAN-CVE-2018-1000116

  • net-snmp Ubuntu 14.04 LTS 5.7.2~dfsg-8.1ubuntu3.1

ubuntu advisories UBUNTU-CVE-2018-1000116

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • net-snmp RHEL 6 1:5.5-54.el6_7.1
  • net-snmp RHEL 7 1:5.7.2-20.el7_1.1
  • net-snmp RHEL 7 1:5.7.2-20.ael7b_1.1
  • net-snmp-gui RHEL 7 1:5.7.2-20.el7_1.1
  • net-snmp-gui RHEL 7 1:5.7.2-20.ael7b_1.1
  • net-snmp-libs RHEL 6 1:5.5-54.el6_7.1
  • net-snmp-libs RHEL 7 1:5.7.2-20.el7_1.1
  • net-snmp-libs RHEL 7 1:5.7.2-20.ael7b_1.1

red hat advisories RHSA-2015:1636

Is CVE-2018-1000116 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2018-1000116 updated cvss 6.5

net-snmp: Heap corruption in snmp_pdu_parse function in snmplib/snmp_api.c

  • Red Hat Enterprise Linux 5 net-snmp
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) net-snmp 5.7.2-20.el7_1.1, net-snmp-libs 5.7.2-20.el7_1.1, net-snmp-utils 5.7.2-20.el7_1.1, net-snmp-agent-libs 5.7.2-20.el7_1.1 Red Hat Enterprise Linux Client Optional (v. 7) net-snmp-gui 5.7.2-20.el7_1.1, net-snmp-perl 5.7.2-20.el7_1.1, net-snmp-python 5.7.2-20.el7_1.1, net-snmp-sysvinit 5.7.2-20.el7_1.1 Red Hat Enterprise Linux ComputeNode (v. 7) net-snmp 5.7.2-20.el7_1.1, net-snmp-libs 5.7.2-20.el7_1.1, net-snmp-utils 5.7.2-20.el7_1.1, net-snmp-agent-libs 5.7.2-20.el7_1.1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) net-snmp-gui 5.7.2-20.el7_1.1, net-snmp-perl 5.7.2-20.el7_1.1, net-snmp-python 5.7.2-20.el7_1.1, net-snmp-sysvinit 5.7.2-20.el7_1.1 Red Hat Enterprise Linux Desktop (v. 6) net-snmp 5.5-54.el6_7.1, net-snmp-libs 5.5-54.el6_7.1 Red Hat Enterprise Linux Desktop Optional (v. 6) net-snmp-perl 5.5-54.el6_7.1, net-snmp-utils 5.5-54.el6_7.1, net-snmp-python 5.5-54.el6_7.1
    +8 more products
    Red Hat Enterprise Linux HPC Node (v. 6) net-snmp 5.5-54.el6_7.1, net-snmp-libs 5.5-54.el6_7.1, net-snmp-perl 5.5-54.el6_7.1, net-snmp-utils 5.5-54.el6_7.1, net-snmp-python 5.5-54.el6_7.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) net-snmp-devel 5.5-54.el6_7.1, net-snmp-debuginfo 5.5-54.el6_7.1 Red Hat Enterprise Linux Server (v. 6) net-snmp 5.5-54.el6_7.1, net-snmp-libs 5.5-54.el6_7.1, net-snmp-perl 5.5-54.el6_7.1, net-snmp-utils 5.5-54.el6_7.1, net-snmp-python 5.5-54.el6_7.1 Red Hat Enterprise Linux Server (v. 7) net-snmp 5.7.2-20.el7_1.1, net-snmp 5.7.2-20.ael7b_1.1, net-snmp-libs 5.7.2-20.el7_1.1, net-snmp-utils 5.7.2-20.el7_1.1, net-snmp-libs 5.7.2-20.ael7b_1.1, net-snmp-utils 5.7.2-20.ael7b_1.1, +2 more Red Hat Enterprise Linux Server Optional (v. 7) net-snmp-gui 5.7.2-20.el7_1.1, net-snmp-perl 5.7.2-20.el7_1.1, net-snmp-gui 5.7.2-20.ael7b_1.1, net-snmp-perl 5.7.2-20.ael7b_1.1, net-snmp-python 5.7.2-20.el7_1.1, net-snmp-python 5.7.2-20.ael7b_1.1, +2 more Red Hat Enterprise Linux Workstation (v. 6) net-snmp 5.5-54.el6_7.1, net-snmp-libs 5.5-54.el6_7.1, net-snmp-perl 5.5-54.el6_7.1, net-snmp-utils 5.5-54.el6_7.1, net-snmp-python 5.5-54.el6_7.1 Red Hat Enterprise Linux Workstation (v. 7) net-snmp 5.7.2-20.el7_1.1, net-snmp-libs 5.7.2-20.el7_1.1, net-snmp-utils 5.7.2-20.el7_1.1, net-snmp-agent-libs 5.7.2-20.el7_1.1 Red Hat Enterprise Linux Workstation Optional (v. 7) net-snmp-gui 5.7.2-20.el7_1.1, net-snmp-perl 5.7.2-20.el7_1.1, net-snmp-python 5.7.2-20.el7_1.1, net-snmp-sysvinit 5.7.2-20.el7_1.1
    fixed: vendor fix RHSA-2015:1636
  • Red Hat Enterprise Linux 8 net-snmp, net-snmp-libs, net-snmp-perl, net-snmp-utils, net-snmp-agent-libs
    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

Exploit prediction

6.29% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sourceforge.net https://sourceforge.net/p/net-snmp/bugs/2821/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

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.