CVE-2026-86109

Security Advisory 0182

Published Sep 16, 2026 CVSS 4.0 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

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.


Vendor Workaround

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.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arista
Arista velocloud Edge
Vendors & Products Arista
Arista velocloud Edge
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Security Advisory 0182
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Arista
Published
Updated
Sep 17, 2026, 5:40 PM
Reserved
Sep 5, 2026, 1:54 AM
Status
Awaiting Analysis
Published
Sep 16, 2026, 3:17 AM
Modified
Sep 17, 2026, 6:17 PM