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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-8836

lwIP snmpv3 USM snmp_msg.c snmp_parse_inbound_frame stack-based overflow

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n/a lwIP

  • 2.1.0affected
  • 2.1.1affected
  • 2.1.2affected
  • 2.1.3affected
  • 2.2.0affected
  • 2.2.1affected

References