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CVE-2026-24858

At a glance

Severity
CRITICAL 9.4
Exploitation
Known exploited (CISA KEV) · added 2026-01-27
Exploited per ENISA since 2026-01-27
EPSS
EPSS 86.59 % · percentile 100 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
fortinet
NVD status
Analyzed

Description

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.

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:Cfortinet
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · psirt@fortinet.com (Secondary)

Weaknesses (CWE)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Fortinet · FortiWebaffected 8.0.0 ≤ 8.0.3 ; affected 7.6.0 ≤ 7.6.6 ; affected 7.4.0 ≤ 7.4.11
Fortinet · FortiNAC-Faffected 7.6.3 ≤ 7.6.5
Fortinet · FortiOSaffected 7.6.0 ≤ 7.6.5 ; affected 7.4.0 ≤ 7.4.10 ; affected 7.2.0 ≤ 7.2.12 ; affected 7.0.0 ≤ 7.0.18
Fortinet · FortiAnalyzeraffected 7.6.0 ≤ 7.6.5 ; affected 7.4.0 ≤ 7.4.9 ; affected 7.2.0 ≤ 7.2.11 ; affected 7.0.0 ≤ 7.0.15
Fortinet · FortiProxyaffected 7.6.0 ≤ 7.6.4 ; affected 7.4.0 ≤ 7.4.12 ; affected 7.2.0 ≤ 7.2.15 ; affected 7.0.0 ≤ 7.0.22
Fortinet · FortiManageraffected 7.6.0 ≤ 7.6.5 ; affected 7.4.0 ≤ 7.4.9 ; affected 7.2.0 ≤ 7.2.11 ; affected 7.0.0 ≤ 7.0.15

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
CISA Known Exploited VulnerabilitiesCC0 1.0
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD