CVE-2026-36538

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-27 · updated 2026-10-19
Weakness: CWE-798

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.

References

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

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