📊 SecuPortal 日次脆弱性ダイジェスト

2026-10-03 15:41:42 生成 · 2026-09-27〜2026-10-03 (7日分)
新規 KEV 4 | 更新ソフト 8 | 対象期間 7日 | 生成 2026-10-03 15:41:42

📦 更新された主要ソフトウェア


製品新バージョンリリース日CVE件数CriticalHighKEV状態
mediawiki (1.46)1.46.12026-10-0241620750⚠️要確認
mediawiki (1.45)1.45.52026-10-0241620750⚠️要確認
mediawiki (1.43)1.43.102026-10-0240920750⚠️要確認
ubuntu (24.04)24.04.52026-09-303114268117740⚠️要確認
amazon-corretto (25)25.0.4.10.12026-09-260000✅計画
amazon-corretto (21)21.0.12.12.12026-09-260000✅計画
amazon-corretto (17)17.0.20.12.12026-09-260000✅計画

非主要製品 の更新: 1件(firefox 157.0。クライアント向けブラウザのため、サーバ運用での要対応度は低い)


🔴 ★★★ 要対応 CVE


本日の要対応該当なし


(今週 KEV に追加された CVE はすべて非主要製品でした。主要製品 MediaWiki の CVE-2026-58025 は CVSS 9.8 ですが、攻撃元区分(AV)と KEV の情報がないため ★★ に入れています。)


🟠 ★★ 参考 CVE


展開して表示 (5件)
  • CVE-2026-76504 — Cisco Catalyst SD-WAN Manager (CVSS 9.8, KEV) : 認証なしで遠隔から admin 権限を取られる可能性があります。URI エンコードの処理不備が原因です。自社では Cisco SD-WAN を使っていない想定なので影響は低いとみられます。ただし委託先や回線事業者の管理機器に含まれていないかは確認をお勧めします。
  • CVE-2026-102489 — Zammad (CVSS 未算出, KEV) : セッション固定化の脆弱性で、zammad ユーザー権限での RCE につながる可能性があります。CVE-2026-102490 と組み合わせて悪用されることがあります。Zammad は PRODUCTS 辞書にないため影響は低いとみられますが、社内ヘルプデスクで使っていないかの確認をお勧めします。
  • CVE-2026-102490 — Zammad (CVSS 未算出, KEV) : ローカルの zammad ユーザーが root に権限昇格できる可能性があります。上の CVE と組み合わせると、未認証から root 取得までつながる恐れがあります。自社影響の見方は上と同じです。
  • CVE-2026-86950 — Apple iOS / macOS / iPadOS (CVSS 8.8, KEV) : CoreGraphics の境界外書き込みで、任意コード実行の可能性があります。サーバ運用には直接関係しないとみられます。ただし社用の Mac や iPhone があれば、MDM 経由で OS 更新を早めに適用することをお勧めします。
  • CVE-2026-58025 — MediaWiki (CVSS 9.8, KEV なし) : 主要製品の 2026 年の Critical CVE です。攻撃元区分(AV)は入力データになく、遠隔から悪用できるか未確認です。社内 Wiki などで MediaWiki を使っていれば、影響範囲と修正版を公式アドバイザリで確認してください。


  • 📝 AI 全体サマリ


    展開して読む
  • 全体トレンド: 今週の KEV 追加 4 件は、Cisco・Apple・Zammad など自社の主要製品以外が中心です。★★★ に当たる CVE はありませんでした。主要ソフトでは MediaWiki が 3 系列同時に更新、Ubuntu 24.04.5 が公開、Amazon Corretto が 17 / 21 / 25 で更新されています。
  • 特記事項
  • - MediaWiki: 1.43 系の still_vulnerable: 7 は、最新版でも未修正の CVE が残っている可能性を示しているように見えます。1.43 系を使っていれば、上位の系列へ移ることも検討するとよさそうです。1.45 系は EOL が 2026-12-31 と近く、1.46 系への移行計画を立てておくことをお勧めします。

    - Ubuntu 24.04.5: KEV 40 件は過去分を含む累計値とみられ、今回のリリースで新たに出たものではない可能性が高いです。24.04 で動いているサーバは、通常の apt upgrade で追従しているかを確認する程度でよいと考えられます。

    - Amazon Corretto: 紐づく CVE はありません。定例更新として計画的に適用すれば問題なさそうです。Log4j などの Java 系ミドルウェアを動かしているホストでは、ランタイム更新後の動作確認をお勧めします。

    - Zammad: KEV 追加の 2 件は組み合わせて悪用できる CVE です。使っていれば、公式アドバイザリに沿って早めの更新が望ましいです。

  • PoC 検証の候補: 社内で MediaWiki を使っている場合に限り、CVE-2026-58025 の影響確認として旧版と修正版の比較環境を作る案があります。攻撃コードは扱わず、アドバイザリにある修正差分や設定上の緩和策を確かめる用途に留めます。

  • 
    # docker-compose.yml(骨子・検証用の隔離ネットワーク内のみで使う)
    services:
      db:
        image: mariadb:11
        environment:
          MARIADB_DATABASE: wiki
          MARIADB_USER: wiki
          MARIADB_PASSWORD: change-me
          MARIADB_RANDOM_ROOT_PASSWORD: "1"
        networks: [lab]
      mw-vuln:
        image: mediawiki:1.45.4   # 修正前(タグは公式アドバイザリで確認)
        depends_on: [db]
        ports: ["127.0.0.1:8081:80"]
        networks: [lab]
      mw-fixed:
        image: mediawiki:1.45.5   # 修正後
        depends_on: [db]
        ports: ["127.0.0.1:8082:80"]
        networks: [lab]
    networks:
      lab:
        internal: false   # 初期セットアップ後は true にして外部への通信を遮断
    


    原本データ (JSON) — 表示するにはクリック
    {
      "range": {
        "from": "2026-09-27",
        "to": "2026-10-03",
        "days": 7
      },
      "summary": {
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          "required_action": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
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          "title_en": "Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.",
          "epss_score": 0.00582
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          "required_action": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
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          "required_action": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
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          "title_en": "A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user.\r\n\r\nThis vulnerability is due to improper handling of URI encoding in an HTTP request, which allows the request to bypass an authentication rule that is intended to restrict access to a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted HTTP request t",
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          "title_en": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.",
          "epss_score": 0.00812
        }
      ],
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        {
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    }