Security Advisory 0182
Summary
| CVE | CVE-2026-86109 |
|---|---|
| State | PUBLISHED |
| Assigner | Arista |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-16 03:17:00 UTC |
| Updated | 2026-09-16 03:17:00 UTC |
| Description | The VeloCloud Edge software update workflow may accept update bundles without properly validating their signatures because the workflow does not restrict the digest algorithm used for artifact verification. An attacker with either sufficient privileges to upload packages to VeloCloud Orchestrator or credentials permitting direct access to an Edge may be able to install unauthorized software. |
Risk And Classification
Primary CVSS: v4.0 7.5 HIGH from [email protected]
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-347 | CWE-347 CWE-347: Improper Verification of Cryptographic Signature
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.5 | HIGH | CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 7.5 | HIGH | CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 3.1 | [email protected] | Secondary | 6.6 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 6.6 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Arista Networks | VeloCloud Edge | affected 6.4.0 6.4.1.x custom | Not specified |
| CNA | Arista Networks | VeloCloud Edge | affected 6.1.0 6.1.4.x custom | Not specified |
| CNA | Arista Networks | VeloCloud Edge | affected 5.2.0 5.2.6.x custom | Not specified |
| CNA | Arista Networks | VeloCloud Edge | affected 0.0.0 5.2.0 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.arista.com/zh/support/advisories-notices/security-advisory/24738-securit... | [email protected] | www.arista.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: This issue was discovered internally by Arista. Arista is not aware of any malicious exploitation of this vulnerability in customer networks. (en)
Additional Advisory Data
Solutions
CNA: Migrating to a patched software version for VeloCloud Edge is the advised course of action. Arista suggests that operators transition to the most recent release within a supported branch that incorporates the necessary remediations.
Workarounds
CNA: 1. Restrict software-image management and VeloCloud Edge update privileges to trusted administrators. 2. Protect VeloCloud Orchestrator administrative credentials and management access. 3. Obtain and distribute VeloCloud Edge software only through trusted Arista management and distribution channels. 4. Investigate unexpected software images or update operations before permitting installation. These measures reduce exposure but do not correct the vulnerable update-verification workflow.