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CVE-2026-6837

HighPublished

A post-authentication command injection vulnerability in the "export-cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow...

Published: Aug 4, 2026
Updated: Aug 5, 2026
Assigning CNA: Zyxel
Evidence observed: Aug 16, 2026

Primary CVSS

7.2/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

1.2%

Low · next 30 days

Percentile: 65.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A post-authentication command injection vulnerability in the "export-cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

Sources

CVE-2026-6837-zyxel-export-cgi-command-injectionPoC
Public writeup, PoC, and emulation materials for CVE-2026-6837 affecting Zyxel export-cgi PKCS#12 export handling.

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