{"id":34876,"date":"2026-10-09T08:32:30","date_gmt":"2026-10-09T00:32:30","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-107738"},"modified":"2026-10-09T08:32:30","modified_gmt":"2026-10-09T00:32:30","slug":"cve-2026-107738","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-107738","title":{"rendered":"CVE-2026-107738 &#8211; SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, ChmFile::GetCharZ()"},"content":{"rendered":"<p>SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, ChmFile::GetCharZ() narrows file-controlled unsigned string offsets from \/#WINDOWS and \/#IVB to signed integers without a lower-bound check. An offset that becomes negative can make the function read before the \/#STRINGS buffer, causing deterministic application termination. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, ChmFile::GetCharZ() narrows file-controlled unsigned string offsets from \/#WINDOWS and \/#IVB to signed integers without a lower-b<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-34876","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/34876","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=34876"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=34876"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=34876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}