{"id":12381,"date":"2025-07-29T04:06:39","date_gmt":"2025-07-28T19:06:39","guid":{"rendered":"https:\/\/m365jp.net\/?p=12381"},"modified":"2025-07-29T04:15:32","modified_gmt":"2025-07-28T19:15:32","slug":"servicerestored-dz1120621-microsoft-defender-xdr-admins-may-receive-false-positive-indications-in-microsoft-defender-vulnerability-management-for-a-specific-app","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-07-29-servicerestored-dz1120621-microsoft-defender-xdr-admins-may-receive-false-positive-indications-in-microsoft-defender-vulnerability-management-for-a-specific-app","title":{"rendered":"[serviceRestored] DZ1120621 | Microsoft Defender XDR | Admins may receive false positive indications in Microsoft Defender vulnerability management for a specific app"},"content":{"rendered":"
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DZ1120621 | Microsoft Defender XDR | Admins may receive false positive indications in Microsoft Defender vulnerability management for a specific app<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nAdmins may have received false positive indications in Microsoft Defender vulnerability management for a specific app.<\/td>\n<\/tr>\n
Last Updated<\/th>\n07\/28\/2025 18:22:49<\/td>\n<\/tr>\n
Start Time<\/th>\n07\/14\/2025 04:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n07\/26\/2025 20:00:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Admins may receive false positive indications in Microsoft Defender vulnerability management for a specific app<\/p>\n

User impact: Admins may have received false positive indications in Microsoft Defender vulnerability management for a specific app.<\/p>\n

Final status: Our testing has confirmed that the deployment of the fix completed more quickly than our monitoring previously indicated. We’ve subsequently monitored our service health telemetry to confirm that the fix has successfully eliminated the false positive indications and impact is remediated.<\/p>\n

Scope of impact: Some admins expecting to receive indications of vulnerabilities in Microsoft Defender for Endpoint for devices with a specific app may have been impacted.<\/p>\n

Start time: Monday, July 14, 2025, at 4:00 AM UTC<\/p>\n

End time: Saturday, July 26, 2025, at 8:00 AM UTC<\/p>\n

Root cause: A configuration error in our detection model resulted in Acrobat Reader executables being marked falsely as Acrobat Reader DC, which resulted in admins receiving false-positive vulnerability indications.<\/p>\n

Next steps:
– We’re continuing our investigation into the configuration error that led to impact to determine precisely what went wrong and reinforce our services against similar future issues.<\/p>\n

This is the final update for the event.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u7ba1\u7406\u8005\u306f\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u306eMicrosoft Defender\u8106\u5f31\u6027\u7ba1\u7406\u3067\u8aa4\u691c\u77e5\u306e\u5146\u5019\u3092\u53d7\u3051\u53d6\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u7ba1\u7406\u8005\u306f\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u306eMicrosoft Defender\u8106\u5f31\u6027\u7ba1\u7406\u3067\u8aa4\u691c\u77e5\u306e\u5146\u5019\u3092\u53d7\u3051\u53d6\u3063\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6700\u7d42\u30b9\u30c6\u30fc\u30bf\u30b9: \u30c6\u30b9\u30c8\u3067\u306f\u3001\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30c7\u30d7\u30ed\u30a4\u304c\u3001\u4ee5\u524d\u306e\u76e3\u8996\u3067\u793a\u3055\u308c\u305f\u3088\u308a\u3082\u65e9\u304f\u5b8c\u4e86\u3057\u305f\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u3001\u30b5\u30fc\u30d3\u30b9\u6b63\u5e38\u6027\u30c6\u30ec\u30e1\u30c8\u30ea\u3092\u76e3\u8996\u3057\u3066\u3001\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3088\u3063\u3066\u8aa4\u691c\u77e5\u306e\u5146\u5019\u304c\u6b63\u5e38\u306b\u6392\u9664\u3055\u308c\u3001\u5f71\u97ff\u304c\u4fee\u5fa9\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: \u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u3092\u642d\u8f09\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u7528\u306eMicrosoft Defender for Endpoint\u306e\u8106\u5f31\u6027\u306e\u5146\u5019\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u3092\u671f\u5f85\u3057\u3066\u3044\u308b\u4e00\u90e8\u306e\u7ba1\u7406\u8005\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 14 \u5e74 2025 \u6708 4 \u65e5\u6708\u66dc\u65e5\u5348\u524d 00 \u6642 UTC<\/p>\n

\u7d42\u4e86\u6642\u523b: 2025 \u5e74 7 \u6708 26 \u65e5\u571f\u66dc\u65e5\u3001\u5348\u524d 8:00 UTC<\/p>\n

\u6839\u672c\u539f\u56e0:\u691c\u51fa\u30e2\u30c7\u30eb\u306e\u8a2d\u5b9a\u30a8\u30e9\u30fc\u306b\u3088\u308a\u3001Acrobat Reader \u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u304c\u8aa4\u3063\u3066 Acrobat Reader DC \u3068\u3057\u3066\u30de\u30fc\u30af\u3055\u308c\u3001\u7ba1\u7406\u8005\u304c\u8aa4\u691c\u77e5\u306e\u8106\u5f31\u6027\u306e\u5146\u5019\u3092\u53d7\u3051\u53d6\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
– \u5f71\u97ff\u306b\u3064\u306a\u304c\u3063\u305f\u69cb\u6210\u30a8\u30e9\u30fc\u306e\u8abf\u67fb\u3092\u7d99\u7d9a\u3057\u3001\u4f55\u304c\u554f\u984c\u3060\u3063\u305f\u306e\u304b\u3092\u6b63\u78ba\u306b\u7279\u5b9a\u3057\u3001\u5c06\u6765\u306e\u540c\u69d8\u306e\u554f\u984c\u306b\u5bfe\u3057\u3066\u30b5\u30fc\u30d3\u30b9\u3092\u5f37\u5316\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30a4\u30d9\u30f3\u30c8\u306e\u6700\u7d42\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DZ1120621 | Microsoft Defender XDR | Admins may receive false positive indications in Microsoft Defender vulne […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12381","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=12381"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12381\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}