What is CVE-2026-26213?

CVE-2026-26213 is a critical-severity vulnerability in Themactep Thingino-firmware, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-26.

How severe is CVE-2026-26213?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Themactep Thingino-firmware

CVE-2026-26213

thingino-firmware versions up to the firmware-2026-03-16 release contains an unauthenticated os command injection vulnerability in the WiFi captive portal CGI script that allows remote attackers to execute arbitrary commands as root by inj…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.002 (43.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Themactep Thingino-firmware — versions 0
Thingino Thingino_firmware

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (product, Release Notes)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-26213?: CVE-2026-26213 is a critical-severity vulnerability in Themactep Thingino-firmware, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-26.
How severe is CVE-2026-26213?: Critical severity. CVSS v3 base score is 9.8 out of 10.