No exploitation reportedFix available

CVE-2026-25622

Q: Is CVE-2026-25622 actively exploited?

Active exploitation of CVE-2026-25622 has not been confirmed. Its EPSS score was 9.9% on 2026-10-25, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-25622?

CVE-2026-25622 has a CVSS v3 base score of 6 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L.

No exploitation reported by the sources we read.

Published2026-06-05
Fixed in17.4.1
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-06-0520:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 15:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-25622?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-25622?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Arista ng firewall

Branch	Affected	Fixed in	Source
17.4	< 17.4.1	17.4.1	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Arista ng firewall to 17.4.1

Advisories and patches

www.arista.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2026-06-05
OpenCVESSVC decisionnone—
CNACVSS 4.07read 2026-10-23
CNACVSS 3.16read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score9.9 %2026-10-25

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L
CVSS 4.0 vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X
Published: 2026-06-05
Last Modified: 2026-07-23
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-25622?

Is CVE-2026-25622 actively exploited?

Active exploitation of CVE-2026-25622 has not been confirmed. Its EPSS score was 9.9% on 2026-10-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-25622?

CVE-2026-25622 has a CVSS v3 base score of 6 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L.

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