Vulnerability · Published Oct 6, 2026 · Assigned by Arista

CVE-2026-101156Security Advisory 0192

High 8.4

In plain English

A high-severity cross-site scripting in CloudVision CUE from Arista Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)8.4High

Exploit odds (30 days)0.3%top 78.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A stored cross-site scripting (XSS) vulnerability may allow an authenticated, high-privilege administrator to store malicious content in a configuration. The content may execute in another authenticated user's browser when that user views or compares the affected configuration. Successful exploitation may allow the attacker to act through the victim's authenticated browser session to access sensitive data, modify configurations, or disrupt managed wireless services.

Affected products (as reported)

Vendor	Product	Versions
Arista Networks	CloudVision CUE	2025.2.0 – through 2026.2.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24808-security-advisory-0192 vendor-advisory