CVE-2026-89147 (GCVE-0-2026-89147)
Vulnerability from cvelistv5
Published
2026-09-11 10:46
Modified
2026-09-24 14:21
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-1088 - Synchronous Access of Remote Resource without Timeout
  • CWE-400 - Uncontrolled Resource Consumption
Summary
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.
References
Impacted products
Vendor Product Version
net-snmp Net-SNMP Version: 0   <
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