Is CVE-2026-102159 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102159 being exploited in the wild.

How severe is CVE-2026-102159?

Critical severity, with a CVSS score of 9.8, published 6 October 2026.

Which products and versions are affected?

Arista Cloudvision Portal 2022.3.0 through 2026.2.0.

Is there a fix for CVE-2026-102159?

Yes: fixed in CloudVision Portal 2022.3.1 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-102159 attacked?

It is attacked over the network.

Am I affected by CVE-2026-102159?

Check whether you run Arista Cloudvision Portal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-102159: Arista CloudVision-CUE access control bypass in backend

CVE-2026-102159 · Severity: critical · CVSS 9.8 · Published 2026-10-06

Arista's CloudVision-CUE is a Wi-Fi management service deployed on-premises as part of CloudVision Portal. An unauthenticated attacker on the network can bypass access controls to reach internal backend functions, exposing sensitive location data and potentially disrupting Wi-Fi services. This is a critical vulnerability affecting all on-premises deployments.

Technologies: Arista Cloudvision Portal. Vendors: Arista.

Quick answers

Is CVE-2026-102159 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102159 being exploited in the wild.
How severe is CVE-2026-102159?: Critical severity, with a CVSS score of 9.8, published 6 October 2026.
Which products and versions are affected?: Arista Cloudvision Portal 2022.3.0 through 2026.2.0.
Is there a fix for CVE-2026-102159?: Yes: fixed in CloudVision Portal 2022.3.1 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-102159 attacked?: It is attacked over the network.
Am I affected by CVE-2026-102159?: Check whether you run Arista Cloudvision Portal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: CloudVision Portal 2022.3.1 and later

Technical details

An access-control flaw in the CV-CUE backend (CWE-306: Missing Authentication for Critical Function) allows unauthenticated network attackers to access functionality intended only for internal services. The vulnerability requires network access but no authentication, user interaction, or special conditions; successful exploitation exposes location information and may cause service disruption. A fix is available in CloudVision Portal 2022.3.1 and later.

Affected products

Arista CloudVision Portal 2022.3.0 through 2026.2.0

Timeline

2026-10-06: disclosed
2026-10-06: advisory: Arista Security Advisory 0190

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24806-security-advisory-0190

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