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CloudVision CUE CVE-2026-102160

| EUVDEUVD-2026-93957 HIGH
OS Command Injection (CWE-78)
2026-10-06 psirt@arista.com GHSA-whcg-hw34-rm77
8.6
CVSS 4.0 · Vendor: arista
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as CloudVision Super User
  2. Delivery
    Submit crafted backup request
  3. Exploit
    Inject OS command via unsanitized input
  4. Execution
    Execute arbitrary commands as service account
  5. Impact
    Full compromise of backup host

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated CloudVision CUE Super User account and the ability to reach and submit a backup request to the backup management feature; the malicious payload is delivered through crafted input in that backup request. The primary limiting factor is the PR:H requirement - only an existing Super User (the highest application privilege level) can trigger this, so it cannot be exploited by anonymous or low-privileged remote users and functions as an application-admin-to-OS escalation. No user interaction by a second party is needed (UI:N). The flaw is in the backup management command handling specifically, so environments that restrict or do not expose Super User access to untrusted parties face substantially reduced exposure.

Impact

This is a genuine but access-gated vulnerability rather than a mass-exploitation threat. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:H/UI:N) and the 8.6 score are driven almost entirely by the high vulnerable-system impact (VC:H/VI:H/VA:H) combined with network reachability and low attack complexity - but the decisive limiting signal is PR:H: the attacker must already hold Super User credentials on CloudVision. That single prerequisite sharply reduces real-world risk, because an attacker with Super User rights already controls the management plane; the vulnerability primarily enables a privilege-boundary escape from application-level admin to OS-level command execution as the backup service account. No EPSS score, no CISA KEV listing, and no public exploit code were provided in the input, so there is no public exploit identified at time of analysis and no evidence of active exploitation. SSVC-style reading: exploitation=none observed, technical impact=total (OS command execution), automatable=no (requires authenticated privileged session, not a spray-able unauthenticated flaw). Net: a legitimately high-severity post-authentication issue worth patching on normal priority, but not an emergency drop-everything item absent exploitation evidence. Note one modeling tension - the raw score reads 'critical-adjacent,' yet the PR:H gate means practical risk is far lower than the number alone implies.

Exploit ScenarioDerived

An attacker who has already obtained (or abused) a CloudVision CUE Super User account submits a backup request containing crafted input that is passed unsafely to an OS command, causing arbitrary commands to run with the privileges of the backup service. No public proof-of-concept was provided, and the network vector with low complexity means the crafted request can be sent remotely once the privileged session exists.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 06, 2026

OS command injection in Arista CloudVision CUE backup management allows an authenticated Super User to execute arbitrary commands with the privileges of the affected service by submitting a crafted backup request. Exploitation is access-gated: it requires the highest application privilege level (PR:H), so anonymous or low-privileged remote users cannot trigger it; the issue functions as an application-admin-to-OS escalation. No public exploit identified at time of analysis, and no EPSS score or KEV status was provided; the independent assessment characterizes this as a genuine but access-gated vulnerability rather than a mass-exploitation threat.

RemediationAI

No vendor-released patch version is specified in the provided intelligence; treat Arista Security Advisory 0190 at https://www.arista.com/en/support/advisories-notices/security-advisory/24806-security-advisory-0190 as the authoritative source for fixed CloudVision CUE releases and apply the vendor-provided update or mitigation when published. Until a fix is applied, reduce exposure by restricting CloudVision CUE Super User accounts to the smallest possible set of trusted administrators, enforcing strong authentication and auditing for those accounts, and disabling or network-restricting the backup management feature if it is not operationally required. Review and validate backup request inputs, and monitor backup management logs for shell metacharacters or unexpected command execution; restricting Super User access can impede legitimate backup administration, and disabling backup management will prevent scheduled or on-demand backups until it is re-enabled.

Affected VersionsENISA

CloudVision CUE 2021.2.0 ≤2026.2.0

Affected Packages

euvd cloudvision_cue no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-78 (Improper Neutralization of Special Elements used in an OS Command) indicates that the CloudVision CUE backup management feature passes attacker-controlled input into an operating system command without adequate sanitization or parameterization, likely invoking a shell and allowing shell metacharacters to alter command execution. The exposed interface is remote (AV:N), low complexity (AC:L), requires high privileges (PR:H), and needs no user interaction (UI:N), with High confidentiality, integrity, and availability impact. The independent assessment concurs with a CVSS 3.1 vector of AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H and notes this is an application-admin-to-OS escalation in the backup request handling path. No CPE strings or version ranges were provided, so exact affected builds should be derived from the Arista advisory.

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Severity by source

Vendor (arista) PRIMARY 8.6 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
vuln.today AI 7.2 HIGH

Network-reachable backup request with low complexity, but requires Super User so PR:H; command execution yields full C/I/A impact with no scope change to other systems.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (arista).

CVSS VectorVendor: arista

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

An operating system (OS) command injection vulnerability in CloudVision CUE backup management may allow an authenticated Super User to submit a crafted backup request and execute arbitrary commands with the privileges of the affected service.

Executive ViewAI

Why It Matters

A high-severity OS command injection vulnerability in Arista CloudVision CUE backup management (CVE-2026-102160) can enable an authenticated Super User to execute arbitrary commands at the affected service's privilege level, putting backup integrity, platform confidentiality, and service availability at risk. The risk is access-gated to the highest application privilege level, so unauthenticated or low-privileged remote users cannot trigger it; the primary concern is a malicious or compromised Super User escalating from application administration to the underlying OS. Because no vendor-released patch is identified and no public exploit identified at time of analysis, leadership should focus immediate attention on restricting, monitoring, and reducing Super User access to CloudVision CUE backup management.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis; restrict CloudVision CUE backup management to trusted administrative networks, enforce least privilege and MFA for all Super User accounts, disable backup management where not required, log and alert on backup requests, and review Super User activity for signs of OS command execution.

Threat Intelligence Overview

EPSS Score
1.4%
Top 29% exploitable
Prevalence
Medium
Arista enterprise network-management platform; common in Arista-based data centers, not universal
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 1.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +43
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

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