{"id":4701,"date":"2026-09-04T18:46:42","date_gmt":"2026-09-04T10:46:42","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-71254"},"modified":"2026-09-04T18:46:42","modified_gmt":"2026-09-04T10:46:42","slug":"cve-2026-71254","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-71254","title":{"rendered":"CVE-2026-71254 [CRITICAL] &#8211; nanoMODBUS through v1.23.0 contains an out-of-bounds write in the Modbus server-side handl"},"content":{"rendered":"<p>nanoMODBUS through v1.23.0 contains an out-of-bounds write in the Modbus server-side handle_read_file_record function (FC 0x14, Read File Record) in nanomodbus.c. The function validates that the total request size does not exceed 245 bytes and that each sub-request&#8217;s record_length is at most 124, but it never validates the CUMULATIVE response size across all sub-requests before processing them.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>nanoMODBUS through v1.23.0 contains an out-of-bounds write in the Modbus server-side handle_read_file_record function (FC 0x14, Read File Record) in nanomodbus.c. The function validates that the total<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-4701","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/4701","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=4701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}