Vulnerability · Published Oct 6, 2026 · Assigned by Arista
CVE-2026-101155Security Advisory 0189
Critical 9.1
In plain English
A critical-severity path traversal in CloudVision Portal 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 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.6%top 53.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An authenticated remote attacker with specific permissions can read or write files on the platform filesystem beyond the intended scope through specially crafted requests and/or crafted file uploads to the Software Management Studio Software Repository.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Arista Networks | CloudVision Portal | 2026.2.02026.1.0 – through 2026.1.22025.3.0 – through 2025.3.32024.2.0 – before 2025.3.0 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H