CVE-2026-20131（cisco secure firewall management center）の深刻度・悪用状況・対象バージョン
概要
A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Java byte stream. An attacker could exploit this vulnerability by sending a crafted serialized Java object to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code on the device and elevate privileges to root. Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced.
CISA の要求対応: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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 | 6.4.0.13 |
| cisco | secure_firewall_management_center | 6.4.0.14 |
| cisco | secure_firewall_management_center | 6.4.0.15 |
| cisco | secure_firewall_management_center | 6.4.0.16 |
| cisco | secure_firewall_management_center | 6.4.0.17 |
| cisco | secure_firewall_management_center | 6.4.0.18 |
| 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 |
基本情報
- 公開日
- 2026-03-04
- 最終更新
- 2026-06-17
- NVD の状態
- Analyzed
- 弱点の種類
- CWE-502
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-2026-20131 を検索 できます。
参考情報
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-rce-NKhnULJh Vendor Advisory
- https://aws.amazon.com/blogs/security/amazon-threat-intelligence-teams-identify-interlock-ransomware-campaign-targeting-enterprise-firewalls/ Technical Description
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20131 US Government Resource
- NVD: CVE-2026-20131
- CVE.org: CVE-2026-20131
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。