CVE-2026-8836 — lwIP snmpv3 USM snmp_msg.c snmp_parse_inbound_frame stack-based overflow
A vulnerability was found in lwIP up to 2.2.1. Affected is the function snmp_parse_inbound_frame of the file src/apps/snmp/snmp_msg.c of the component snmpv3 USM Handler. Perfor…
Published: 2026-05-18 · CVSS: 9.3 · CVSS 4.0
A vulnerability was found in lwIP up to 2.2.1. Affected is the function snmp_parse_inbound_frame of the file src/apps/snmp/snmp_msg.c of the component snmpv3 USM Handler. Performing a manipulation of the argument msgAuthenticationParameters results in stack-based buffer overflow. The attack may be initiated remotely. The patch is named 0c957ec03054eb6c8205e9c9d1d05d90ada3898c. It is suggested to install a patch to address this issue. Two separate issue reports were submitted to the project. Their processing was merged as a duplicate.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7