CVE-2026-36538

HIGH EPSS 23.0%

Published May 27, 20261mo ago · Modified Jun 17, 20262w ago

7.3 CVSS 3.1

High

Published May 27, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

Description

Netis AC1200 Router NC21 V4.0.1.4296 contains a hard-coded root credential stored in /etc/shadow.sample. The password for the root account is set to the trivially weak value root, allowing an attacker with access to the device to authenticate as root and gain full control of the underlying operating system.

CVSS Details

Base Score

7.3

Exploitability

3.9

Impact

3.4

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

23.0% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-798 Use of Hard-coded Credentials Authentication

References 2

netis-system.com http://netis-system.com
github.com https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36538/readme.md

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.