9.8

CVE-2026-26083: fortinet fortisandbox Missing Authorization

CVSS: 9.8v3.1CriticalAnalyzed
Published 12-05-2026Last modified 08-07-2026
Open JSON

Vulnerability summary

CVE-2026-26083 is a critical (CVSS 9.8) Missing Authorization vulnerability in fortinet fortisandbox. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.50%
0%100%
Low · -0.23 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-05-2026
    PublishedVulnerability first disclosed.
  2. 08-07-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.50%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

-0.23 pp

From 0.73% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.50%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet3 products
  • fortisandbox≥ 5.0.0, ≤ 5.0.1 | ≥ 4.4.0, ≤ 4.4.8 | ≥ 4.2.1, ≤ 4.2.8 | ≥ 4.4.0, < 4.4.9 | ≥ 5.0.0, < 5.0.2
  • fortisandbox_cloud≥ 5.0.0, ≤ 5.0.1 | ≥ 4.4.5, ≤ 4.4.8 | ≥ 5.0.2, < 5.0.6 | ≥ 23.1.4245, ≤ 23.4.4374 | 24.1.4436
  • fortisandbox_paas23.4.4374 | 23.4.4350 | 23.3.4329 | 23.1.4245 | 22.2.4151 | 22.2.4134 | 22.1.4113 | 21.4.4072 | 21.3.4055 | ≥ 5.0.0, ≤ 5.0.1 | ≥ 4.4.5, ≤ 4.4.8 | ≥ 4.4.5, < 4.4.9 | ≥ 5.0.0, < 5.0.2 | ≥ 21.3.4055, ≤ 23.4.4374

1 vendor · 3 products

References

1 links