CVE-2026-12489 — Zyxel / EX3501-T0 firmware

CVE-2026-12489

Zyxel / EX3501-T0 firmware PUBLISHED

Description (CNA)

An incorrect authorization vulnerability in the Data Access Layer (DAL) of Zyxel EX3501-T0 firmware versions through 5.44(ACHR.6)C0 could allow an authenticated attacker to escalate privileges by modifying the login_privilege data on an affected device.

Affected (CNA)

Vendor / product	Versions
Zyxel / EX3501-T0 firmware	affected <= 5.44(ACHR.6)C0

CWE

CWE-863

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-incorrect-authorization-vulnerability-in-the-dal-of-certain-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-10-20-2026

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.