High severity · published Feb 10, 2026
CVE-2026-22153
An Authentication Bypass by Primary Weakness vulnerability [CWE-305] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4 may allow an unauthenticated attacker to bypass LDAP…
8.1
CVSS
0.8%
EPSS
No
On KEV
Description
An Authentication Bypass by Primary Weakness vulnerability [CWE-305] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4 may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, when the remote LDAP server is configured in a specific way.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiOS · Fortinet
7.6.0 before 7.6.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22153
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22153
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-25-1052
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