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PatchSiren cyber security CVE debrief

CVE-2026-25622 Arista Networks CVE debrief

CVE-2026-25622 is a HIGH severity vulnerability with a CVSS score of 7. An administrative account logged into the user interface can exploit this input handling behavior to execute arbitrary platform shell commands.

Vendor
Arista Networks
Product
Arista Edge Threat Management - Arista Next Generation Firewall (NGFW)
CVSS
HIGH 7
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

A Captive Portal Custom Handler command injection vulnerability exists in Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). On affected platforms, an administrative account logged into the user interface can exploit this input handling behavior to execute arbitrary platform shell commands.

Defensive priority

HIGH

Recommended defensive actions

  • Apply the patch or upgrade to a non-vulnerable version.
  • 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-2026-25622) and [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-25622).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-25622 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-25622

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

  • CVE-2026-25622 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-25622

    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.