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PatchSiren cyber security CVE debrief

CVE-2026-25620 Arista Networks CVE debrief

An encrypted password command injection vulnerability exists in the Captive Portal application framework of Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). This issue uniquely affects version 17.4.0; earlier software releases are not exposed. The vulnerability has a CVSS score of 7 and is classified as HIGH.

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) version 17.4.0 should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability exists in the Captive Portal application framework of Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). It is caused by an encrypted password command injection issue. The Common Vulnerabilities and Exposures (CVE) score is 7, indicating a HIGH severity level.

Defensive priority

HIGH

Recommended defensive actions

  • Apply the patch or update to a fixed version of Arista Edge Threat Management - Arista Next Generation Firewall (NGFW) as recommended by the vendor.
  • Refer to the vendor advisory for more information and mitigation strategies. [ref-4]

Evidence notes

The information provided is based on the CVE record and the National Vulnerability Database (NVD) details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-25620 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-25620

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

  • CVE-2026-25620 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-25620

    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.