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CVE-2026-9543

Totolink N300RH Web Management cstecgi.cgi setPasswordCfg os command injection

CVSS 9.3 CRITICALEPSS 2.1%CWE-77CWE-78
Vexday Risk Score
48Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 9.3EPSS 2.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
26 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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 os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Totolink · N300RH
public PoCs found — 1
cve_referencegithub.com/A1ester/TOTOLINK-N300RH-Command-Injectionunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/A1ester/TOTOLINK-N300RH-Command-Injectionhttps://vuldb.com/submit/815068https://vuldb.com/vuln/365607https://vuldb.com/vuln/365607/ctihttps://www.totolink.net/