CVE-2026-8836 PUBLISHED

lwIP snmpv3 USM snmp_msg.c snmp_parse_inbound_frame stack-based overflow

Assigner: VulDB
Reserved: 18.05.2026 Published: 18.05.2026 Updated: 18.05.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X
CVSS Score: 9.3

Product Status

Vendor n/a
Product lwIP
Versions
  • Version 2.1.0 is affected
  • Version 2.1.1 is affected
  • Version 2.1.2 is affected
  • Version 2.1.3 is affected
  • Version 2.2.0 is affected
  • Version 2.2.1 is affected

Credits

  • 0rbitingZer0 (VulDB User) reporter

References

Problem Types

  • Stack-based Buffer Overflow CWE
  • Memory Corruption CWE