What is CVE-2026-9543?

CVE-2026-9543 is a critical-severity vulnerability in Totolink N300rh, classified under Command Injection. CVSS score: 9.8/10. Published 2026-05-26.

How severe is CVE-2026-9543?

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

RCE in Totolink N300rh

CVE-2026-9543

A vulnerability has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument admpass leads to o…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.003 (52.4th 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

Totolink N300rh — versions 6.1c.1353_B20190305

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-9543?: CVE-2026-9543 is a critical-severity vulnerability in Totolink N300rh, classified under Command Injection. CVSS score: 9.8/10. Published 2026-05-26.
How severe is CVE-2026-9543?: Critical severity. CVSS v3 base score is 9.8 out of 10.