CVE-2026-25621 PUBLISHED

Arista Edge Threat Management NGFW Reports Application Insecure Input Validation

Assigner: Arista
Reserved: 03.02.2026 Published: 05.06.2026 Updated: 05.06.2026

A Reports application infrastructure vulnerability exists in Arista Edge Threat Management - Arista Next Generation Firewall (NGFW) due to insecure input validation. This issue uniquely affects version 17.4.0; earlier software releases are not exposed.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L
CVSS Score: 6

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L/S:P
CVSS Score: 7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	Low
Attack Complexity	Low	Integrity	Low	Integrity	Low
Attack Requirements	None	Availability	Low	Availability	Low
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	Arista Networks
Product	Arista Edge Threat Management - Arista Next Generation Firewall (NGFW)
Versions	Default: unaffected Version 17.4.0 is affected

Affected Configurations

In order to be vulnerable, the following cumulative conditions must be satisfied:

An NGFW system running exactly version 17.4.0.
Successful administrative interface access authentication privileges verified.
Navigation to the Reports application dashboard under the Data subsystem.
Processing an upload interaction within the Import/Restore Data Backup Files field utilizing a specially crafted malicious input file.

Workarounds

Per operational best practice security models, do not allow unauthorized administrative access to the administrative browser.

Solutions

The recommended resolution is to upgrade to NGFW Version 17.4.1 at your earliest convenience.

Credits

Jon Williams & Ronan Kervella from Bishop Fox finder

References

https://www.arista.com/en/support/advisories-notices/security-advisory/23399-security-advisory-0133

Problem Types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE

Impacts

CAPEC-88 OS Command Injection