Resource Exhaustion Affecting net-snmp package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.49% (40th percentile)

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  • Snyk IDSNYK-ECHOLATEST-NETSNMP-19698302
  • published12 Sept 2026
  • disclosed11 Sept 2026

Introduced: 11 Sep 2026

CVE-2026-89147  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-1088  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest net-snmp.

NVD Description

Note: Versions mentioned in the description apply only to the upstream net-snmp package and not the net-snmp package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Net-SNMP through 5.9.5.2 contains a denial of service vulnerability in the SMUX module where smux_accept() performs an unauthenticated blocking read without timeout on newly accepted connections. An unauthenticated remote client can connect to the SMUX listener and send no data, causing the single-threaded snmpd main loop to block indefinitely and suspend all SNMP processing.

CVSS Base Scores

version 3.1