{"id":"CVE-2026-15340","revision":"97f0464a615041fb9b09ac798e48c965","records":[{"revision":"97f0464a615041fb9b09ac798e48c965","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-15340","aliases":[],"title":"Savannah lwIP SMTP client Classic Buffer Overflow","description":"lwIP SMTP client does not check the size of inputs, potentially allowing a buffer overflow.","state":0,"publishedAt":"2026-10-09T14:52:43.517+00:00","modifiedAt":"2026-10-11T17:05:28.24+00:00","affected":[{"ecosystem":"Vendor product","name":"lwIP SMTP client","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Savannah\",\n                    \"product\": \"lwIP SMTP client\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.2.1\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"patch_125_smtp_txbuf.diff\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"git commit (614420f82c8729d070e01464c0dddb3c9525c772)\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"},{"system":"CVSS 4.0","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","score":9.3,"severity":"CRITICAL"}],"references":["https://www.cisa.gov/news-events/ics-advisories/icsa-26-279-02","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-279-02.json"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-15340","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-15340","identifiers":["CVE-2026-15340"]},"retained":false,"historicalAffected":[]}],"coverage":[]}