CVE-2026-24858（fortinet fortianalyzer）の深刻度・悪用状況・対象バージョン
概要
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.5, FortiAnalyzer 7.4.0 through 7.4.9, FortiAnalyzer 7.2.0 through 7.2.11, FortiAnalyzer 7.0.0 through 7.0.15, FortiManager 7.6.0 through 7.6.5, FortiManager 7.4.0 through 7.4.9, FortiManager 7.2.0 through 7.2.11, FortiManager 7.0.0 through 7.0.15, FortiNAC-F 7.6.3 through 7.6.5, FortiOS 7.6.0 through 7.6.5, FortiOS 7.4.0 through 7.4.10, FortiOS 7.2.0 through 7.2.12, FortiOS 7.0.0 through 7.0.18, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4.0 through 7.4.12, FortiProxy 7.2.0 through 7.2.15, FortiProxy 7.0.0 through 7.0.22, FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11 may allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.
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 |
|---|---|---|
| fortinet | fortianalyzer | ≥ 7.0.0 かつ ≤ 7.0.15 |
| fortinet | fortianalyzer | ≥ 7.2.0 かつ ≤ 7.2.11 |
| fortinet | fortianalyzer | ≥ 7.4.0 かつ < 7.4.10 |
| fortinet | fortianalyzer | ≥ 7.6.0 かつ < 7.6.6 |
| fortinet | fortimanager | ≥ 7.0.0 かつ ≤ 7.0.15 |
| fortinet | fortimanager | ≥ 7.2.0 かつ ≤ 7.2.11 |
| fortinet | fortimanager | ≥ 7.4.0 かつ < 7.4.10 |
| fortinet | fortimanager | ≥ 7.6.0 かつ < 7.6.6 |
| fortinet | fortinac-f | ≥ 7.6.3 かつ < 7.6.6 |
| fortinet | fortiproxy | ≥ 7.0.0 かつ ≤ 7.0.22 |
| fortinet | fortiproxy | ≥ 7.2.0 かつ ≤ 7.2.15 |
| fortinet | fortiproxy | ≥ 7.4.0 かつ ≤ 7.4.12 |
| fortinet | fortiproxy | ≥ 7.6.0 かつ ≤ 7.6.4 |
| fortinet | fortiweb | ≥ 7.4.0 かつ ≤ 7.4.11 |
| fortinet | fortiweb | ≥ 7.6.0 かつ ≤ 7.6.6 |
基本情報
- 公開日
- 2026-01-27
- 最終更新
- 2026-06-17
- 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-2026-24858 を検索 できます。
参考情報
- https://fortiguard.fortinet.com/psirt/FG-IR-26-060 Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-975644.html Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24858 US Government Resource
- https://www.fortinet.com/blog/psirt-blogs/analysis-of-sso-abuse-on-fortios MitigationVendor Advisory
- NVD: CVE-2026-24858
- CVE.org: CVE-2026-24858
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。