{"id":14999,"date":"2026-09-04T19:02:21","date_gmt":"2026-09-04T11:02:21","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63995"},"modified":"2026-09-04T19:02:21","modified_gmt":"2026-09-04T11:02:21","slug":"cve-2026-63995","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63995","title":{"rendered":"CVE-2026-63995 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: cmis: valida"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ethtool: cmis: validate start_cmd_payload_size from module<\/p>\n<p>The CMIS firmware update code reads start_cmd_payload_size from<br \/>\nthe module&#8217;s FW Management Features CDB reply and uses it directly<br \/>\nas the byte count for memcpy. The destination buffer is 112 bytes<br \/>\n(ETHTOOL_CMIS_CDB_LPL_MAX_PL_LENGTH &#8211; 8). So a malicious<br \/>\nmodule (or corrupted response) can cause a OOB write later on in<br \/>\ncmis_fw_update_start_download().<\/p>\n<p>Let&#8217;s error out. If modules that expect longer LPL writes actually<br \/>\nexist we should revisit.<\/p>\n<p>struct cmis_cdb_start_fw_download_pl&#8217;s definition has to move,<br \/>\nno change there.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ethtool: cmis: validate start_cmd_payload_size from module<\/p>\n<p>The CMIS firmware update code reads start_cmd_payload_size from<br \/>\nthe mod<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14999","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14999","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=14999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}