How severe is CVE-2026-25620?

CVE-2026-25620 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2026-25620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25620?

CVE-2026-25620 affects Arista Ng Firewall. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25620?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-25620 have an EU (EUVD) identifier?

Yes. CVE-2026-25620 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34903.

When was CVE-2026-25620 published?

CVE-2026-25620 was published on 2026-06-05 and last updated on 2026-07-23.

CVE-2026-25620

CVE-2026-25620 is a medium-severity vulnerability in Arista Ng Firewall with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
CVSS v4: 7.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34903
Weakness: CWE-78
Affected product: Arista Ng Firewall
Published: 2026-06-05
Last modified: 2026-07-23

Description

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.

Frequently asked questions

What is CVE-2026-25620?: 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.
How severe is CVE-2026-25620?: CVE-2026-25620 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2026-25620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25620?: CVE-2026-25620 affects Arista Ng Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-25620 have an EU (EUVD) identifier?: Yes. CVE-2026-25620 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34903.
When was CVE-2026-25620 published?: CVE-2026-25620 was published on 2026-06-05 and last updated on 2026-07-23.

References

https://www.arista.com/en/support/advisories-notices/security-advisory/22867-security-advisory-0133

Affected products (1)

cpe:2.3:a:arista:ng_firewall:17.4:*:*:*:*:*:*:*

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