CVE-2026-8836

CRITICAL9.8

lwIP snmpv3 USM snmp_msg.c snmp_parse_inbound_frame stack-based overflow

Published May 18, 2026

Modified 1 months ago

Details

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.

References

FIX

https://cgit.git.savannah.gnu.org/cgit/lwip.git/commit/?id=0c957ec03054eb6c8205e9c9d1d05d90ada3898c

FIX

https://github.com/lwip-tcpip/lwip/commit/0c957ec03054eb6c8205e9c9d1d05d90ada3898c

WEB

https://savannah.nongnu.org/bugs/?68194

ADVISORY

https://vuldb.com/submit/829798

WEB

https://vuldb.com/vuln/364474

WEB