{"id":6332,"date":"2026-04-11T04:57:51","date_gmt":"2026-04-11T04:57:51","guid":{"rendered":"https:\/\/powderkegtech.com\/?p=6332"},"modified":"2026-04-29T13:47:13","modified_gmt":"2026-04-29T13:47:13","slug":"emocheck-vulnerability-cve-2026-28704","status":"publish","type":"post","link":"https:\/\/powderkegtech.com\/ja\/emocheck-vulnerability-cve-2026-28704\/","title":{"rendered":"\u5f53\u793e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c JPCERT\/CC \u306e\u30c4\u30fc\u30eb\u300cEmoCheck\u300d\u306e\u8106\u5f31\u6027\uff08CVE-2026-28704\uff09\u3092\u767a\u898b\uff01"},"content":{"rendered":"\n<p>\u3053\u306e\u5ea6\u3001\u5f53\u793e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3001\u65e5\u672c\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e2d\u6838\u6a5f\u95a2\u3067\u3042\u308bJPCERT\/CC\u304c\u63d0\u4f9b\u3059\u308b\u30c4\u30fc\u30eb\u300cEmoCheck\u300d\u306e\u8106\u5f31\u6027\u3092\u767a\u898b\u3057\u3001IPA\u3078\u306e\u5c4a\u51fa\u3092\u7d4c\u3066JVN\uff08Japan Vulnerability Notes\uff09\u306b\u6b63\u5f0f\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n<div class=\"wp-block-image vk_block-margin-md--margin-top\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/powderkegtech.com\/wp-content\/uploads\/2026\/04\/emocheck_thumbnail-1024x538.png\" alt=\"\" class=\"wp-image-6337\" style=\"width:763px;height:auto\" srcset=\"https:\/\/powderkegtech.com\/wp-content\/uploads\/2026\/04\/emocheck_thumbnail-1024x538.png 1024w, https:\/\/powderkegtech.com\/wp-content\/uploads\/2026\/04\/emocheck_thumbnail-300x158.png 300w, https:\/\/powderkegtech.com\/wp-content\/uploads\/2026\/04\/emocheck_thumbnail-768x403.png 768w, https:\/\/powderkegtech.com\/wp-content\/uploads\/2026\/04\/emocheck_thumbnail.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"vk_block-margin-lg--margin-top\">\u672c\u8a18\u4e8b\u3067\u306f\u3001\u4eca\u56de\u306e\u8106\u5f31\u6027\u306e\u6982\u8981\u3068\u79c1\u305f\u3061\u304c\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u3053\u308c\u3092\u767a\u898b\u3057\u305f\u304b\u3001\u305d\u3057\u3066\u4f01\u696d\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u3068\u3063\u3066\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u304b\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-vk-blocks-border-box vk_borderBox vk_borderBox-background-transparent vk_block-margin-md--margin-top is-style-vk_borderBox-style-solid-kado-tit-tab\"><div class=\"vk_borderBox_title_container\"><i class=\"\"><\/i><h4 class=\"vk_borderBox_title\">EmoCheck \u306e\u8106\u5f31\u6027\uff08CVE-2026-28704\uff09<\/h4><\/div><div class=\"vk_borderBox_body\">\n<p><strong>Advisory:<\/strong> <a href=\"https:\/\/jvn.jp\/jp\/JVN00263243\/\" title=\"\">JVN#00263243<\/a><br><strong>CVE:<\/strong> CVE-2026-28704<br><strong>CVSSv3:<\/strong> 7.5<br><strong>CVSSv4:<\/strong> 8.4<br><strong>CWE:<\/strong> CWE-427\uff08\u30d5\u30a1\u30a4\u30eb\u691c\u7d22\u30d1\u30b9\u306e\u5236\u5fa1\u4e0d\u5099\uff09<br><strong>\u5f71\u97ff\u5ea6:<\/strong> High<br><strong>\u5f71\u97ff\u7bc4\u56f2:<\/strong> EmoCheck \u3059\u3079\u3066\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<br><strong>\u653b\u6483\u30d9\u30af\u30c8\u30eb:<\/strong> \u60aa\u610f\u3042\u308b\u30e6\u30fc\u30b6\u304c\u7d30\u5de5\u3057\u305f DLL \u3092\u914d\u5e03\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u653b\u6483\u53ef\u80fd\uff08EmoCheck \u3068\u540c\u3058\u30d5\u30a9\u30eb\u30c0\u306b\u914d\u7f6e\u3059\u308b\u5fc5\u8981\u3042\u308a\uff09<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading is-style-vk-heading-solid_bottomborder_black\">EmoCheck\u3068\u306f\u4f55\u304b<\/h2>\n\n\n\n<p><br>EmoCheck\u3068\u306f\u3001\u731b\u5a01\u3092\u632f\u308b\u3063\u305f\u30de\u30eb\u30a6\u30a7\u30a2\u300cEmotet\u300d\u306e\u611f\u67d3\u6709\u7121\u3092\u624b\u8efd\u306b\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001JPCERT\/CC\u304c\u958b\u767a\u30fb\u7121\u511f\u914d\u5e03\u3057\u3066\u3044\u305f\u30c4\u30fc\u30eb\u3067\u3059\u3002Emotet \u306f\u30012019\u5e74\uff5e2022\u5e74\u306b\u304b\u3051\u3066\u56fd\u5185\u5916\u306e\u4f01\u696d\u30fb\u5b98\u516c\u5e81\u306b\u751a\u5927\u306a\u88ab\u5bb3\u3092\u3082\u305f\u3089\u3057\u3001\u611f\u67d3\u62e1\u5927\u3092\u9632\u3050\u305f\u3081\u306b\u591a\u304f\u306e IT \u62c5\u5f53\u8005\u304c EmoCheck \u3092\u6709\u52b9\u6d3b\u7528\u3057\u3066\u3044\u307e\u3057\u305f\u3002<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading is-style-vk-heading-solid_bottomborder_black\">\u767a\u898b\u3055\u308c\u305f\u8106\u5f31\u6027\uff1a\u300cDLL\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u300d\u3068\u306f<\/h2>\n\n\n\n<p>\u4eca\u56de\u767a\u898b\u3055\u308c\u305f\u8106\u5f31\u6027\u306f\u300cDLL\u8aad\u307f\u8fbc\u307f\u306b\u95a2\u3059\u308b\u554f\u984c\uff08CWE-427\uff09\u300d\u3067\u3059\u3002<br>Windows \u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u8d77\u52d5\u6642\u306b\u7279\u5b9a\u306e\u300cDLL\uff08\u30e9\u30a4\u30d6\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\uff09\u300d\u3092\u8aad\u307f\u8fbc\u3093\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u3069\u306e\u30d5\u30a9\u30eb\u30c0\u304b\u3089 DLL \u3092\u8aad\u307f\u8fbc\u3080\u304b\u306e\u9806\u756a\u306b\u554f\u984c\u304c\u3042\u308b\u3068\u3001\u653b\u6483\u8005\u304c\u7528\u610f\u3057\u305f\u60aa\u610f\u306e\u3042\u308b DLL \u3092\u610f\u56f3\u305b\u305a\u8aad\u307f\u8fbc\u3093\u3067\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u300cDLL\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u300d\u3068\u547c\u3073\u307e\u3059\u3002<br>EmoCheck \u306e\u5834\u5408\u3001\u30c4\u30fc\u30eb\u3068\u540c\u3058\u30d5\u30a9\u30eb\u30c0\u306b\u7279\u5b9a\u306e\u540d\u524d\u306e DLL \u3092\u7f6e\u3044\u3066\u304a\u304f\u3060\u3051\u3067\u3001EmoCheck \u306e\u5b9f\u884c\u6642\u306b\u305d\u306e DLL \u304c\u547c\u3073\u51fa\u3055\u308c\u3066\u3057\u307e\u3046\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u653b\u6483\u306e\u8a73\u7d30\u30b7\u30ca\u30ea\u30aa\u306f\u3001<a href=\"https:\/\/jvndb.jvn.jp\/ja\/contents\/2026\/JVNDB-2026-000053.html\" target=\"_blank\" rel=\"noopener\" title=\"\">JVN iPedia<\/a> \u306b\u5206\u304b\u308a\u3084\u3059\u304f\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u3053\u3061\u3089\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading is-style-vk-heading-solid_bottomborder_black\">\u306a\u305c\u79c1\u305f\u3061\u304c\u3053\u308c\u3092\u767a\u898b\u3067\u304d\u305f\u306e\u304b<\/h2>\n\n\n\n<p>\u6211\u3005\u306f\u3001MUSHIKAGO \u306e\u958b\u767a\u30fb\u904b\u7528\u3092\u901a\u3058\u3066\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u3084\u653b\u6483\u30c4\u30fc\u30eb\u306e\u6319\u52d5\u89e3\u6790\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u307e\u3059\u3002\u4eca\u56de\u306e\u767a\u898b\u3082\u3001\u300c\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c4\u30fc\u30eb\u81ea\u4f53\u304c\u653b\u6483\u7d4c\u8def\u306b\u306a\u308a\u5f97\u306a\u3044\u304b\u300d\u3068\u3044\u3046\u8996\u70b9\u3067\u306e\u8abf\u67fb\u304c\u304d\u3063\u304b\u3051\u3067\u3057\u305f\u3002<br><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u3084\u516c\u7684\u6a5f\u95a2\u306e\u30c4\u30fc\u30eb\u306f\u300c\u4fe1\u983c\u3067\u304d\u308b\u3082\u306e\u300d\u3068\u3057\u3066\u6271\u308f\u308c\u304c\u3061<\/strong>\u3067\u3059\u3002\u3057\u304b\u3057\u3060\u304b\u3089\u3053\u305d\u3001\u653b\u6483\u8005\u306b\u60aa\u7528\u3055\u308c\u305f\u3068\u304d\u306e\u88ab\u5bb3\u306f\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002\u300c\u4fe1\u983c\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3092\u7591\u3046\u300d\u3053\u308c\u304c\u79c1\u305f\u3061\u306e\u7814\u7a76\u59ff\u52e2\u3067\u3059\u3002<br>\u767a\u898b\u5f8c\u306f\u3001\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u65e9\u671f\u8b66\u6212\u30d1\u30fc\u30c8\u30ca\u30fc\u30b7\u30c3\u30d7\uff08IPA\/JPCERT\/CC\uff09\u3092\u901a\u3058\u305f\u6b63\u898f\u306e\u8cac\u4efb\u3042\u308b\u958b\u793a\u30d7\u30ed\u30bb\u30b9\uff08Responsible Disclosure\uff09\u306b\u57fa\u3065\u3044\u3066\u5831\u544a\u3057\u3001\u4eca\u56de\u306e\u516c\u958b\u306b\u81f3\u308a\u307e\u3057\u305f\u3002<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading is-style-vk-heading-solid_bottomborder_black\">\u672c\u4ef6\u304c\u610f\u5473\u3059\u308b\u3053\u3068 \uff5e\u4f01\u696d\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62c5\u5f53\u8005\u3078\uff5e<\/h2>\n\n\n\n<p>\u4eca\u56de\u306e\u4ef6\u306f\u3001\u4e00\u3064\u306e\u91cd\u8981\u306a\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u300c\u304b\u3064\u3066\u4f7f\u3063\u3066\u3044\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c4\u30fc\u30eb\u300d\u3082\u653b\u6483\u5bfe\u8c61\u306b\u306a\u308a\u5f97\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<br>\u7279\u306b\u4f01\u696d\u74b0\u5883\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30ea\u30b9\u30af\u304c\u6f5c\u3093\u3067\u3044\u307e\u3059\u3002<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e00\u6642\u7684\u306b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30c4\u30fc\u30eb\u304c\u6b8b\u5b58\u3057\u3066\u3044\u308b<\/strong><\/li>\n\n\n\n<li><strong>\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u30b5\u30a4\u30ec\u30f3\u30c8\u306b\u7a3c\u50cd\u3057\u7d9a\u3051\u3066\u3044\u308b<\/strong><\/li>\n\n\n\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62c5\u5f53\u8005\u304c\u3044\u306a\u3044\u62e0\u70b9\u30fb\u7aef\u672b\u306e\u68da\u5378\u3057\u304c\u3067\u304d\u3066\u3044\u306a\u3044\u3002<\/strong><br><\/li>\n<\/ul>\n\n\n\n<p>\u3053\u3046\u3057\u305f\u300c\u898b\u3048\u3066\u3044\u306a\u3044\u30ea\u30b9\u30af\u300d\u3092\u53ef\u8996\u5316\u3057\u3001\u7d99\u7d9a\u7684\u306b\u691c\u8a3c\u3067\u304d\u308b\u4f53\u5236\u304c\u4eca\u306e\u4f01\u696d\u306b\u306f\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading is-style-vk-heading-solid_bottomborder_black\">MUSHIKAGO \u304c\u304a\u5f79\u306b\u7acb\u3066\u308b\u3053\u3068<\/h2>\n\n\n\n<p>\u5f53\u793e\u304c\u63d0\u4f9b\u3059\u308b\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u578b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c6\u30b9\u30c8\u30c7\u30d0\u30a4\u30b9\u300c<strong>MUSHIKAGO<\/strong>\u300d\u306f\u3001\u3053\u3046\u3057\u305f\u898b\u3048\u306a\u3044\u30ea\u30b9\u30af\u3092\u5b9f\u969b\u306e\u653b\u6483\u8996\u70b9\u3067\u6d17\u3044\u51fa\u3059\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f01\u696d\u5185\u306b\u5b58\u5728\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3092\u3059\u3070\u3084\u304f\u53ef\u8996\u5316<\/strong><\/li>\n\n\n\n<li><strong>\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3092\u691c\u51fa<\/strong><\/li>\n\n\n\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u4e0d\u8981\u3067\u30af\u30ed\u30fc\u30ba\u30c9\u74b0\u5883\uff08\u5de5\u5834\u30fbOT\/ICS\uff09\u306b\u3082\u5bfe\u5fdc<\/strong><\/li>\n\n\n\n<li><strong>\u7d4c\u6e08\u7523\u696d\u7701\uff08METI\uff09\u56fd\u7523\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u9078\u5b9a\u5b9f\u7e3e<\/strong><br><\/li>\n<\/ul>\n\n\n\n<p>\u300c\u81ea\u793e\u306e\u74b0\u5883\u306b\u672c\u5f53\u306b\u30ea\u30b9\u30af\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u305f\u3044\u300d\u300c\u30da\u30cd\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u30c6\u30b9\u30c8\u3092\u521d\u3081\u3066\u691c\u8a0e\u3057\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u4f01\u696d\u69d8\u306f\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<br><br><strong>MUSHIKAGO\u306e\u8a73\u7d30\u30fb\u304a\u554f\u3044\u5408\u308f\u305b\u306f\u3053\u3061\u3089<\/strong><br><a href=\"https:\/\/powderkegtech.com\/ja\/mushikago\/\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/powderkegtech.com\/ja\/mushikago\/<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading is-style-vk-heading-solid_bottomborder_black\">\u53c2\u8003<\/h2>\n\n\n\n<p>JVN#00263243 \u516c\u5f0f\u30da\u30fc\u30b8\uff1a<a href=\"https:\/\/jvn.jp\/jp\/JVN00263243\/\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/jvn.jp\/jp\/JVN00263243\/<\/a><br>JPCERT\/CC \u516c\u5f0f\u767a\u8868\uff1a<a href=\"https:\/\/www.jpcert.or.jp\/press\/2026\/PR20260410.html\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/www.jpcert.or.jp\/press\/2026\/PR20260410.html<\/a><br>JVN iPedia\uff1a<a href=\"https:\/\/jvndb.jvn.jp\/ja\/contents\/2026\/JVNDB-2026-000053.html\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/jvndb.jvn.jp\/ja\/contents\/2026\/JVNDB-2026-000053.html<\/a><br>NIST\uff1a<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-28704\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-28704<\/a><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u5ea6\u3001\u5f53\u793e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3001\u65e5\u672c\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e2d\u6838\u6a5f\u95a2\u3067\u3042\u308bJPCERT\/CC\u304c\u63d0\u4f9b\u3059\u308b\u30c4\u30fc\u30eb\u300cEmoCheck\u300d\u306e\u8106\u5f31\u6027\u3092\u767a\u898b\u3057\u3001IPA\u3078\u306e\u5c4a\u51fa\u3092\u7d4c\u3066JVN\uff08Japan Vulnerability Notes\uff09 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6337,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","_locale":"ja","_original_post":"https:\/\/powderkegtech.com\/?p=6332","_vk_print_noindex":"","sitemap_hide":"","_veu_custom_css":"","veu_display_promotion_alert":"common","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":""},"categories":[79,81],"tags":[246,249,245,250,248,259,244,252,247,251],"class_list":["post-6332","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-79","category-81","tag-cve-2026-28704","tag-dll","tag-emocheck","tag-emotet","tag-jpcert-cc","tag-jvn","tag-mushikago","tag-252","tag-247","tag-251","ja"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" 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