CVE-2026-20079（cisco secure firewall management center）の深刻度・悪用状況・対象バージョン
10.0 緊急（CVSS 3.x） 悪用確認済み（CISA KEV） EPSS 取得中…
概要
A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. This vulnerability is due to an improper system process that is created at boot time. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute a variety of scripts and commands that allow root access to the device.
実際の攻撃で悪用されています。 CISA KEV への追加日: 2026-09-09。対象製品を使っている場合は最優先で対策してください。
CISA の要求対応: 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.
CISA の要求対応: 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.
影響を受ける製品
| ベンダー | 製品 | 対象バージョン |
|---|---|---|
| cisco | secure_firewall_management_center | 7.0.0 |
| cisco | secure_firewall_management_center | 7.0.0.1 |
| cisco | secure_firewall_management_center | 7.0.1 |
| cisco | secure_firewall_management_center | 7.0.1.1 |
| cisco | secure_firewall_management_center | 7.0.2 |
| cisco | secure_firewall_management_center | 7.0.2.1 |
| cisco | secure_firewall_management_center | 7.0.3 |
| cisco | secure_firewall_management_center | 7.0.4 |
| cisco | secure_firewall_management_center | 7.0.5 |
| cisco | secure_firewall_management_center | 7.0.6 |
| cisco | secure_firewall_management_center | 7.0.6.1 |
| cisco | secure_firewall_management_center | 7.0.6.2 |
| cisco | secure_firewall_management_center | 7.0.6.3 |
| cisco | secure_firewall_management_center | 7.0.7 |
| cisco | secure_firewall_management_center | 7.0.8 |
基本情報
- 公開日
- 2026-03-04
- 最終更新
- 2026-09-16
- NVD の状態
- Analyzed
- 弱点の種類
- CWE-288
対策の進め方
- 上の表で、使っている製品とバージョンが対象か確認します。
- ベンダーの公式アドバイザリ（下の参考情報の「Vendor Advisory」「Patch」）で修正版・回避策を確認します。
- 悪用が確認されているため、パッチ適用までの間もアクセス制限・侵害の痕跡確認を検討します。
- 日本語の情報は JVN iPedia で CVE-2026-20079 を検索 できます。
参考情報
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2 Vendor Advisory
- http://seclists.org/fulldisclosure/2026/Aug/80 ExploitMailing ListThird Party Advisory
- https://blog.talosintelligence.com/fmc-ongoing-exploitation/ ExploitThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20079 US Government Resource
- NVD: CVE-2026-20079
- CVE.org: CVE-2026-20079
データ出典: NIST NVD、CISA KEV、FIRST EPSS。翻訳は参考情報で、正確性は原文を優先してください。