Vulnerability · Published Oct 6, 2026 · Assigned by Arista

CVE-2026-101157Security Advisory 0192

High 8.7

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 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)0.2%top 87.6% 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 unauthenticated attacker with adjacent-network access to inject malicious content that executes when an authenticated user views affected content. Successful exploitation may allow the attacker to compromise the victim's authenticated browser session, access sensitive data, modify system state, or disrupt affected services.

Affected products (as reported)

Vendor	Product	Versions
Arista Networks	CloudVision CUE	2021.2.0 – through 2026.2.0

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

References

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