{"id":"CVE-2026-119053","revision":"232b6d8aadcd442288a787441707270e","records":[{"revision":"232b6d8aadcd442288a787441707270e","observedAt":"2026-10-29T16:12:12.582+00:00","statement":{"source":"cve-program","id":"CVE-2026-119053","aliases":[],"title":"lwIP 2.0.0 through 2.2.1 SNMP Agent Out-of-Bounds Read via snmp_pbuf_stream_writeto()","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.","state":0,"publishedAt":"2026-10-29T13:08:53.56+00:00","modifiedAt":"2026-10-29T14:01:51.233+00:00","affected":[{"ecosystem":"https://savannah.nongnu.org/projects/lwip/","name":"lwIP","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"lwIP\",\n                    \"product\": \"lwIP\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.0.0\",\n                            \"lessThanOrEqual\": \"2.2.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"collectionURL\": \"https://savannah.nongnu.org/projects/lwip/\",\n                    \"repo\": \"https://git.savannah.nongnu.org/git/lwip.git\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/lwip-tcpip/lwip/commit/e98415014aca66ef0daefded8020763b9279a3b2","https://github.com/lwip-tcpip/lwip","https://github.com/lwip-tcpip/lwip/blob/77dcd25a72509eb83f72b033d219b1d40cd8eb95/src/apps/snmp/snmp_pbuf_stream.c#L111-L122","https://www.vulncheck.com/advisories/lwip-2.0.0-through-2.2.1-snmp-agent-out-of-bounds-read-via-snmp-pbuf-stream-writeto"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119053","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-119053","identifiers":["CVE-2026-119053"]},"retained":false,"historicalAffected":[]}],"coverage":[]}