synced 11 MIN AGO
01 Record

CVE-2026-44277

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

CriticalPUBLISHEDCNA: fortinet
CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

02 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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.55% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 45.7% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-26.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-05-12 16:54Z5 MO AGO
Last updated
2026-05-28 09:30Z5 MO AGO
Reserved
2026-05-05
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
Critical (CVSS 9.1)
CNA CVSS 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
Weaknesses
  • CWE-284Improper Access ControlPillar
Data version
5.2
Document digest
0a099a2bb9b024f5410a2645d93aca6d75d3325f04aa50f0221e52dbe17f78b9

05 Affected products

VendorProductVersionsPlatforms
FortinetFortiAuthenticator8.0.2, 8.0.0, 6.6.0 to 6.6.8, 6.5.0 to 6.5.6, 6.4.0 to 6.4.10—

06 References

07 Remediation

Upgrade to FortiAuthenticator version 8.0.3 or above Upgrade to FortiAuthenticator version 8.0.1 or above Upgrade to FortiAuthenticator version 6.6.9 or above Upgrade to FortiAuthenticator version 6.5.7 or above Upgrade to FortiAuthenticator version 6.4.11 or above Upgrade to FortiAuthenticator version 6.3.5 or above