CVE-2026-24858

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: Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability
vendorProject: Fortinet
product: Multiple Products
dateAdded: 2026-01-27
shortDescription: Fortinet FortiAnalyzer, FortiManager, FortiOS, and FortiProxy contain an authentication bypass using an alternate path or channel that could 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.
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: 2026-01-30
knownRansomwareCampaignUse: Unknown
forensicTriage: No
notes: Please adhere to Fortinet's guidelines to assess exposure and mitigate risks. Check for signs of potential compromise on all internet accessible Fortinet products affected by this vulnerability. Apply any final mitigations provided by the vendor as soon as they become available. For more information please see: https://fortiguard.fortinet.com/psirt/FG-IR-26-060 ; https://www.fortinet.com/blog/psirt-blogs/analysis-of-sso-abuse-on-fortios ; https://nvd.nist.gov/vuln/detail/CVE-2026-24858
cwes: CWE-288

初めて観測: 2026-10-02T21:06:48Z / 最後に観測: 2026-10-02T21:06:48Z(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: 2026-01-27T19:18:23.591Z
dateUpdated: 2026-06-09T14:27:53.379Z

CNA の affected

Fortinet FortiWeb (8.0.0 〜 <=8.0.3; 7.6.0 〜 <=7.6.6; 7.4.0 〜 <=7.4.11)
Fortinet FortiNAC-F (7.6.3 〜 <=7.6.5)
Fortinet FortiOS (7.6.0 〜 <=7.6.5; 7.4.0 〜 <=7.4.10; 7.2.0 〜 <=7.2.12; 7.0.0 〜 <=7.0.18)
Fortinet FortiAnalyzer (7.6.0 〜 <=7.6.5; 7.4.0 〜 <=7.4.9; 7.2.0 〜 <=7.2.11; 7.0.0 〜 <=7.0.15)
Fortinet FortiProxy (7.6.0 〜 <=7.6.4; 7.4.0 〜 <=7.4.12; 7.2.0 〜 <=7.2.15; 7.0.0 〜 <=7.0.22)
Fortinet FortiManager (7.6.0 〜 <=7.6.5; 7.4.0 〜 <=7.4.9; 7.2.0 〜 <=7.2.11; 7.0.0 〜 <=7.0.15)

KEV と CNA で製品の表記が異なる。KEV の vendorProject・product と CNA の affected が、大文字小文字を無視した包含で一致しなかった(機械的な照合で、どちらが正しいかは判定していない)。

外部のページ

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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