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Vulnerability record/PUBLISHED/Published Oct 31, 2026 01:56:35 UTC

CVE-2026-116755

Improper Neutralization of Special Elements used in a Command ('Command Injection') in the Orchestrator component of SoftIron HyperCloud allows an authenticated user with access to the management plane to execute arbitrary operating system commands on hypervisor hosts as the privileged orchestration user. Attacker-controlled virtual machine template content (for example, the VM DESCRIPTION field) is delivered to hosts through a shell here-document whose terminator is not quoted, so shell expansion and here-document terminator injection are performed on that content during virtual machine lifecycle operations such as deploy, migrate, and network setup. Exploitation requires valid credentials, access to the management plane (owning a virtual machine alone is not sufficient), and a lifecycle operation that reaches the affected host. This issue affects the Orchestrator component of SoftIron HyperCloud from 1.0 through 2.6.17 and is fixed in 2.6.18.

Base score7.4/ 10
SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityHigh
Attack vectorAdjacentAV
Attack complexityLowAC
Privileges requiredLowPR
User interactionRequiredUI
ScopeUnchangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactHighA
CVSS vector stringCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthoritySoftIron
Last updatedNov 6, 2026 13:44:26 UTC
PublishedOct 31, 2026 01:56:35 UTC
ReservedOct 26, 2026 20:39:27 UTC