CVE-2026-116755

HIGH
MEDIUM Priority: 0.07 BB Relevance: 40/100
Published: 2026-10-31 Modified: 2026-11-06 First seen: 2026-10-31 Status: active

Attack Surface

Adjacent Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: Low
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
SoftIron HyperCloud 1.0 < 2.6.18
SoftIron HyperCloud 1.0 < 2.6.18

References & Advisories (1)

Bug Bounty Relevance

40 / 100
✓ Low complexity

CVSS Score

7.4 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.93%
Raw Score 0.009290
Percentile 61.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00929
2026-11-12
0.00929
2026-11-10
0.00929
2026-11-09
0.00929
2026-11-08
0.00929
2026-11-07
0.00929
2026-11-06
0.00929
2026-11-05
0.00929
2026-11-04
0.00929
2026-11-03
0.00929
2026-11-02
0.00929
2026-11-01
0.00929
2026-10-31
0.00929

Intelligence Sources

mitre ref →
nvd ref →