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Ubuntu 25.10 Net-SNMP Important Denial of Service Vulnerability USN-7944-1

ubuntu
Calendar Grey January 7, 2026
Dist Ubuntu Esm H88
A security advisory for Ubuntu regarding a Net-SNMP issue that could lead to a denial of service from crafted inputs.
Net-SNMP could be made to crash if it received specially crafted input.

Summary

Net-SNMP could be made to crash if it received specially crafted

input.

Software Description:

- net-snmp: SNMP (Simple Network Management Protocol) server and applications

Details:

Bahae Bahrini discovered that Net-SNMP could be made to write out of

bounds. If a user or an automated system were tricked into opening a

specially crafted input file, a remote attacker could possibly use

this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu vulnerability important Net-SNMP

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
  libsnmp40t64                    5.9.4+dfsg-2ubuntu2.1
  snmp                            5.9.4+dfsg-2ubuntu2.1
  snmpd                           5.9.4+dfsg-2ubuntu2.1

Ubuntu 25.04
  libsnmp40t64                    5.9.4+dfsg-1.1ubuntu7.1
  snmp                            5.9.4+dfsg-1.1ubuntu7.1
  snmpd                           5.9.4+dfsg-1.1ubuntu7.1

Ubuntu 24.04 LTS
  libsnmp40t64                    5.9.4+dfsg-1.1ubuntu3.2
  snmp                            5.9.4+dfsg-1.1ubuntu3.2
  snmpd                           5.9.4+dfsg-1.1ubuntu3.2

Ubuntu 22.04 LTS
  libsnmp40                       5.9.1+dfsg-1ubuntu2.9
  snmp                            5.9.1+dfsg-1ubuntu2.9
  snmpd                           5.9.1+dfsg-1ubuntu2.9

Ubuntu 20.04 LTS
  libsnmp35                       5.8+dfsg-2ubuntu2.9+esm2
                                  Available with Ubuntu Pro
  snmp                            5.8+dfsg-2ubuntu2.9+esm2
                                  Available with Ubuntu Pro
  snmpd                           5.8+dfsg-2ubuntu2.9+esm2
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libsnmp30                       5.7.3+dfsg-1.8ubuntu3.8+esm1
                                  Available with Ubuntu Pro
  snmp                            5.7.3+dfsg-1.8ubuntu3.8+esm1
                                  Available with Ubuntu Pro
  snmpd                           5.7.3+dfsg-1.8ubuntu3.8+esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libsnmp30                       5.7.3+dfsg-1ubuntu4.6+esm2
                                  Available with Ubuntu Pro
  snmp                            5.7.3+dfsg-1ubuntu4.6+esm2
                                  Available with Ubuntu Pro
  snmpd                           5.7.3+dfsg-1ubuntu4.6+esm2
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  libsnmp30                       5.7.2~dfsg-8.1ubuntu3.3+esm4
                                  Available with Ubuntu Pro
  snmp                            5.7.2~dfsg-8.1ubuntu3.3+esm4
                                  Available with Ubuntu Pro
  snmpd                           5.7.2~dfsg-8.1ubuntu3.3+esm4
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7944-1

CVE-2025-68615

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7944-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu vulnerability important Net-SNMP

Package Information

https://launchpad.net/ubuntu/+source/net-snmp/5.9.1+dfsg-1ubuntu2.9

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