CVE-2025-5088Network attack vector

Cluster-wide root access via authenticated Redis session

Published Jun 5, 2026 · Updated Jun 5, 2026

Improper privilege management in MCS on Arista CloudVision eXchange allows remote authenticated users to gain root access cluster-wide. Arista has not disclosed how an authenticated Redis session crosses the MCS privilege boundary to execute with root authority. Exploitation requires enabled MCS, network access to the plaintext Redis service, and its password; success grants root access to every CVX cluster server.

CVSS severity8.3
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in MCS on Arista CloudVision eXchange allows remote authenticated users to gain root access cluster-wide. Arista has not disclosed how an authenticated Redis session crosses the MCS privilege boundary to execute with root authority. Exploitation requires enabled MCS, network access to the plaintext Redis service, and its password; success grants root access to every CVX cluster server.

The record

CVE
CVE-2025-5088
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
Arista Networks
Product
CloudVision eXchange (CVX)
Classifications
CWE-269, CAPEC-233, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.30.0 <4.31.0
  2. Affected versionversion=4.31.0M <=4.31.8M
  3. Affected versionversion=4.32.0M <=4.32.6M
  4. Affected versionversion=4.33.0M <=4.33.4M
  5. Affected versionversion=4.34.0F <=4.34.1F

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Arista Networks · CloudVision eXchange (CVX)version=4.30.0 <4.31.0; version=4.31.0M <=4.31.8M; version=4.32.0M <=4.32.6M; version=4.33.0M <=4.33.4M; version=4.34.0F <=4.34.1F

Published CVSS scores

8.7Arista PSIRTCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
8.3Arista PSIRTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
CAPEC-233Privilege Escalation
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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