{"id":4703,"date":"2026-09-04T18:46:42","date_gmt":"2026-09-04T10:46:42","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-71256"},"modified":"2026-09-04T18:46:42","modified_gmt":"2026-09-04T10:46:42","slug":"cve-2026-71256","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-71256","title":{"rendered":"CVE-2026-71256 [CRITICAL] &#8211; nanoMODBUS through v1.23.0 contains an out-of-bounds stack read leading to a wild-pointer"},"content":{"rendered":"<p>nanoMODBUS through v1.23.0 contains an out-of-bounds stack read leading to a wild-pointer write in nmbs_read_device_identification_basic \/ recv_read_device_identification_res in nanomodbus.c. A fixed 3-element stack array order[3] = {0,1,2} maps object IDs to buffer indices. The server-supplied object_id field (0-255, read directly from the wire) is used without any bounds check as buf_index = order[object_id].<\/p>\n","protected":false},"excerpt":{"rendered":"<p>nanoMODBUS through v1.23.0 contains an out-of-bounds stack read leading to a wild-pointer write in nmbs_read_device_identification_basic \/ recv_read_device_identification_res in nanomodbus.c. A fixed <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-4703","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/4703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}