CVE-2026-6837 — HIGH (7.2) — White Hats Nepal

Vulnerability Description

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.

CVSS Score

7.2

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-78

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advis

FAQ

What is CVE-2026-6837?

CVE-2026-6837 is a vulnerability with a CVSS score of 7.2 (HIGH). 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...

How severe is CVE-2026-6837?

CVE-2026-6837 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-6837?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.