CVE Catalog

CVE-2026-12489

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

22th percentile - higher than 22% of all known CVEs

Summary

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

Risk Assessment

An attacker with a valid account can gain elevated privileges and take control of the device configuration. This may compromise the confidentiality and integrity of the network managed by the router.

Recommendation

Upgrade Zyxel EX3501-T0 firmware to a version later than 5.44(ACHR.6)C0 as advised by the vendor. Restrict administrative access to the device to trusted networks.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS