Medium severity5.3NVD Advisory· Published Oct 29, 2026
CVE-2026-119053
CVE-2026-119053
Description
lwIP 2.0.0 through 2.2.1 built with the SNMP agent contains an out-of-bounds read vulnerability in snmp_pbuf_stream_writeto() that bounds copies by pbuf->len instead of remaining bytes. Remote unauthenticated attackers knowing the read community can send fragmented SNMP requests to receive adjacent receive-buffer or pool memory echoed in responses.
Patches
Vulnerability mechanics
References
3- github.com/lwip-tcpip/lwip/blob/77dcd25a72509eb83f72b033d219b1d40cd8eb95/src/apps/snmp/snmp_pbuf_stream.cnvd
- github.com/lwip-tcpip/lwip/commit/e98415014aca66ef0daefded8020763b9279a3b2nvd
- www.vulncheck.com/advisories/lwip-2.0.0-through-2.2.1-snmp-agent-out-of-bounds-read-via-snmp-pbuf-stream-writetonvd
News mentions
0No linked articles in our index yet.