CVE-2026-45498

KEV の『悪用』には未遂(脆弱でない環境やハニーポットでの試行)が含まれ、特定の組織が侵害されたことを意味しない。

KEV の登録内容

vulnerabilityName
Microsoft Defender Denial of Service Vulnerability
vendorProject
Microsoft
product
Defender
dateAdded
2026-05-20
shortDescription
Microsoft Defender contains an unspecified vulnerability that allows for denial of service.
requiredAction
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
dueDate
2026-06-03
knownRansomwareCampaignUse
Unknown
forensicTriage
No
notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-45498 ; https://nvd.nist.gov/vuln/detail/CVE-2026-45498

初めて観測: / 最後に観測: (last_observed_at。値の変更を最後に確認した時刻)

観測した変更

取り込み開始以降、KEV の値の変更は観測していません。

CVE レコード(CVE Program)

state
PUBLISHED
datePublished
dateUpdated

CNA の affected

ベンダー公表へのリンク(CNA の references のうち vendor-advisory)

リンク先の本文は取得・解析していません。

出典: CISA Known Exploited Vulnerabilities Catalog(CISA KEV。CC0 1.0)。 詳しくは出典表記とライセンス。

出典: CVE Program(CVE レコード)。詳しくは出典表記とライセンス。

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脆弱性の一覧へ