Net-SNMP Buffer Overflow Vulnerability in snmptrapd Daemon Leading to Crash

Vulnerability

A buffer overflow vulnerability has been identified in the Net-SNMP snmptrapd daemon, all versions prior to 5.9.5 and 5.10.pre2. This vulnerability allows a specially crafted packet to cause the daemon to crash. The issue has been patched in versions 5.9.5 and 5.10.pre2.

Impact

Exploitation of this vulnerability leads to a buffer overflow, causing the snmptrapd daemon to crash.

Remediation

Users of the Net-SNMP snmptrapd daemon should upgrade to version 5.9.5 or 5.10.pre2. Additionally, ensure that SNMP ports are not open to public networks, and firewall ports to snmptrapd appropriately.

Added: Dec 23, 2025, 12:16 AM
Updated: Dec 23, 2025, 12:16 AM

Vulnerability Rating

Custom Algorithm
spread
8.1
impact
2.5
exploitability
7.8
remediation
7.9
relevance
1.6
threat
0.0
urgency
2.9
incentive
10.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.