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PatchSiren cyber security CVE debrief

CVE-2026-25624 Arista Networks CVE debrief

CVE-2026-25624 is a MEDIUM severity vulnerability in Arista Edge Threat Management - Arista Next Generation Firewall. An administrative cross-site scripting (XSS) vulnerability exists in the web user interface dashboard layout. Unvalidated user-supplied variables are echoed back to administrative profiles, facilitating vector payload processing behavior controls.

Vendor
Arista Networks
Product
Arista Edge Threat Management - Arista Next Generation Firewall (NGFW)
CVSS
MEDIUM 5.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-07-23
Advisory published
2026-06-05
Advisory updated
2026-07-23

Who should care

Administrators and users of Arista Edge Threat Management - Arista Next Generation Firewall (NGFW) should be aware of this vulnerability.

Technical summary

The vulnerability has a CVSS score of 5.8 and is classified as CWE-79. The affected product is Arista NG Firewall, with versions prior to 17.4.1 being vulnerable.

Defensive priority

MEDIUM

Recommended defensive actions

  • Apply the patch or upgrade to a non-vulnerable version of Arista NG Firewall.
  • Refer to the vendor advisory for more information: [ref-4](https://www.arista.com/en/support/advisories-notices/security-advisory/23399-security-advisory-0133)

Evidence notes

The CVE record and NVD detail can be found at: [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-25624) and [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-25624).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-25624 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-25624

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-25624 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-25624

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.