Vulnerability · Published May 12, 2026 · Assigned by fortinet
CVE-2026-44277
Critical 9.1
In plain English
A critical-severity improper access control in FortiAuthenticator from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.6%top 53.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
A improper access control vulnerability in Fortinet FortiAuthenticator 8.0.2, FortiAuthenticator 8.0.0, FortiAuthenticator 6.6.0 through 6.6.8, FortiAuthenticator 6.5.0 through 6.5.6 may allow attacker to execute unauthorized code or commands via crafted requests.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiAuthenticator | 8.0.28.0.06.6.0 – through 6.6.86.5.0 – through 6.5.66.4.0 – through 6.4.10 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C