CVE-2026-44277

CRITICALCVSS 9.8/10EPSS 0.55%

Last modified

CVE-2026-44277 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.55%

41.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FortinetFortiauthenticator>= 6.4.0, <= 6.4.10
FortinetFortiauthenticator>= 6.5.0, < 6.5.7
FortinetFortiauthenticator>= 6.6.0, < 6.6.9
FortinetFortiauthenticator>= 8.0.0, < 8.0.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 attacker to execute unauthorized code or commands via crafted requests.
How severe is CVE-2026-44277?
CVE-2026-44277 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.
How do I fix CVE-2026-44277?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-44277?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST