Is CVE-2026-26083 actively exploited?

No active exploitation of CVE-2026-26083 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-26083 be exploited remotely?

Yes. CVE-2026-26083 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-26083?

CVE-2026-26083 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-26083

CWE-862Published: May 12, 2026· Updated: May 15, 2026

9.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.7th

Official Description

A missing authorization vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox Cloud 5.0.2 through 5.0.5, FortiSandbox PaaS 23.4 all versions, FortiSandbox PaaS 23.3 all versions, FortiSandbox PaaS 23.1 all versions, FortiSandbox PaaS 22.2 all versions, FortiSandbox PaaS 22.1 all versions, FortiSandbox PaaS 21.4 all versions, FortiSandbox PaaS 21.3 all versions, FortiSandbox PaaS 5.0.0 through 5.0.1, FortiSandbox PaaS 4.4.5 through 4.4.8 may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests.

NVD Source

Technical Analysis

CVE-2026-26083 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.