{"id":14639,"date":"2026-09-04T19:02:06","date_gmt":"2026-09-04T11:02:06","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2021-27137"},"modified":"2026-09-04T19:02:06","modified_gmt":"2026-09-04T11:02:06","slug":"cve-2021-27137","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2021-27137","title":{"rendered":"CVE-2021-27137 [HIGH] [\u5728\u91ce] &#8211; An issue was discovered in router\/upnp\/src\/ssdp.c in DD-WRT before 45724. An unsafe strcpy"},"content":{"rendered":"<p>An issue was discovered in router\/upnp\/src\/ssdp.c in DD-WRT before 45724. An unsafe strcpy in the UPnP handling functionality allows an unauthenticated remote attacker to send a request that would overflow an internal fixed buffer. Exploitation requires the DD-WRT user to enable UPnP (which is off by default, and only listens on internal interfaces by default). This occurs in ssdp_msearch (reachable by an M-SEARCH request).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An issue was discovered in router\/upnp\/src\/ssdp.c in DD-WRT before 45724. An unsafe strcpy in the UPnP handling functionality allows an unauthenticated remote attacker to send a request that would ove<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14639","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14639","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=14639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}