How severe is CVE-2026-25622?

CVE-2026-25622 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-2026-25622 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-2026-25622?

CVE-2026-25622 affects Arista Ng Firewall. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25622?

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

Does CVE-2026-25622 have an EU (EUVD) identifier?

Yes. CVE-2026-25622 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34907.

When was CVE-2026-25622 published?

CVE-2026-25622 was published on 2026-06-05 and last updated on 2026-06-17.

CVE-2026-25622

CVE-2026-25622 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-2026-34907
Weakness: CWE-78
Affected product: Arista Ng Firewall
Published: 2026-06-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-25622?: 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.
How severe is CVE-2026-25622?: CVE-2026-25622 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-2026-25622 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-2026-25622?: CVE-2026-25622 affects Arista Ng Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25622?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-25622 have an EU (EUVD) identifier?: Yes. CVE-2026-25622 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34907.
When was CVE-2026-25622 published?: CVE-2026-25622 was published on 2026-06-05 and last updated on 2026-06-17.

References

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

Affected products (1)

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

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