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CVE-2026-12489: CWE-863 Incorrect Authorization in Zyxel EX3501-T0 firmware

0
Medium
VulnerabilityCVE-2026-12489cvecve-2026-12489cwe-863
Published: 10/20/2026 (10/20/2026, 02:04:49 UTC)
Source: CVE Database V5
Vendor/Project: Zyxel
Product: EX3501-T0 firmware

Description

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.

CVSS v3.1

Score 6.5medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected software

Zyxel

EX3501-T0 firmware

Technical Details

Data Version
5.2
Assigner Short Name
Zyxel
Date Reserved
2026-06-17T03:45:11.296Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6ad6d31c2cdf04f656eb55c6

Added to database: 10/20/2026, 02:34:04 UTC

Last updated: 10/20/2026, 02:34:04 UTC

Views: 1

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