CVE-2026-24858 Details
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiOS, FortiManager, FortiAnalyzer 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.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-24858
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
3.41 Probability of exploitation activity being observed over the next 30 days (87th percentile)
CVSS score for CVE-2026-24858
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2026-24858
FortiOS 7.0.13
FortiOS 7.0.14
FortiOS 7.0.15
FortiOS 7.0.2
FortiOS 7.0.3
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Critical
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CVE-2026-24858 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 2,308 12.77%
IN 1,355 7.50%
JP 868 4.80%
TH 759 4.20%
BR 629 3.48%
FR 593 3.28%
TR 593 3.28%
TW 525 2.91%
MX 471 2.61%
IT 460 2.55%

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CVE-2026-24858 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 8,229 75.40%
Technology 1,578 14.46%
Business Services 220 2.02%
Aerospace/Defense 133 1.22%
Consumer Goods 96 0.88%
Government/Politics 94 0.86%
Manufacturing 83 0.76%
Utilities 77 0.71%
Education 67 0.61%
Finance 57 0.52%

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