OS command injection on vmimages update feature

unknownCVE-2026-25836

CVSSv3 Score: 6.7 An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] in FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow a privileged attacker with super-admin profile and CLI access to execute unauthorized code or commands via crafted HTTP requests. Revised on 2026-03-26 00:00:00

CSIRTS triage

vendor: Fortinet product: FortiSandbox Cloud and FortiSandbox PaaS Code injection

What: A vulnerability allows a privileged attacker to execute unauthorized code via crafted HTTP requests.
Who is affected: Privileged users with super-admin profile and CLI access.
Urgency: Remediation is important due to the potential for unauthorized code execution.
Action: Apply security updates and review access controls.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Fortinet FortiGuard PSIRT (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-03-10
Exploitation: Not in CISA KEV at last sync

Original advisory: https://fortiguard.fortinet.com/psirt/FG-IR-26-096

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2026-258361.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 75% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-25836	coverage & exploitation status	NVD · CVE.org

Recent advisories for OS command injection

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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