CVE-2026-22153

unknowncovered by 1 sourcefirst seen 2026-02-10

CVSSv3 Score: 7.5 An Authentication Bypass by Primary Weakness vulnerability [CWE-305] in FortiOS fnbamd may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, under specific LDAP server configuration. Revised on 2026-07-04 00:00:00

CSIRTS triage

What: An authentication bypass vulnerability may allow unauthenticated attackers to bypass LDAP authentication.
Who is affected: Deployments of FortiOS with specific LDAP server configurations.
Urgency: Remediation is urgent due to a CVSS score of 7.5 indicating high severity.
Action: Apply the latest patches to FortiOS.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.70% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownLDAP authentication bypass in Agentless VPN and FSSOfortinet · 2026-02-10

External references

NVD record for CVE-2026-22153

CVE.org record

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