{"id":12471,"date":"2026-09-04T18:59:25","date_gmt":"2026-09-04T10:59:25","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-6688"},"modified":"2026-09-04T18:59:25","modified_gmt":"2026-09-04T10:59:25","slug":"cve-2026-6688","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-6688","title":{"rendered":"CVE-2026-6688 [HIGH] &#8211; FatFs R0.16 and earlier contains a downstream-caller vulnerability pattern associated with"},"content":{"rendered":"<p>FatFs R0.16 and earlier contains a downstream-caller vulnerability pattern associated with FatFs long filename handling. With LFN enabled, fno.fname can be up to 255 characters; many callers copy it into short fixed buffers without bounds checks, causing overflow. This maps to CWE-120 (Buffer Copy without Checking Size of Input). Estimated CVSS v3.1 vector: CVSS:3.1\/AV:P\/AC:L\/PR:N\/UI:N\/S:C\/C:H\/I:H\/A:H (7.6, High). The estimated CISA SSVC vectors are Exploitation: PoC, Technical Impact: Total.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>FatFs R0.16 and earlier contains a downstream-caller vulnerability pattern associated with FatFs long filename handling. With LFN enabled, fno.fname can be up to 255 characters; many callers copy it i<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-12471","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/12471","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=12471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}