{"id":15204,"date":"2026-09-04T19:02:30","date_gmt":"2026-09-04T11:02:30","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-64193"},"modified":"2026-09-04T19:02:30","modified_gmt":"2026-09-04T11:02:30","slug":"cve-2026-64193","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-64193","title":{"rendered":"CVE-2026-64193 [CRITICAL] &#8211; Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED"},"content":{"rendered":"<p>Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR.<\/p>\n<p>Net::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR option (RFC 8914) by tokenising the raw bytes and passing the result to Perl&#8217;s eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt-&gt;edns-&gt;option(&#8216;EXTENDED-ERROR&#8217;) is called in array context, for example with a payload of {0:`&#8221;&#8221;`} in EXTRA-TEXT.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR.<\/p>\n<p>Net::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR o<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-15204","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/15204","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=15204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}