CVE-2026-9515

Totolink CA750-PoE Setting cstecgi.cgi setUnloadUserData os command injection

CVSS 5.3 MEDIUMEPSS 1.8%CWE-77 CWE-78

Vexday Risk Score

33Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 5.3EPSS 1.8%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

25 May 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

A vulnerability was detected in Totolink CA750-PoE 6.2c.510. The affected element is the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. The manipulation of the argument plugin_version results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Affected products

Totolink · CA750-PoE

public PoCs found — 1

cve_referencegithub.com/wudipjq/my_vuln/blob/main/totolink4/vuln_53/53.mdunverified

⚠ 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/wudipjq/my_vuln/blob/main/totolink4/vuln_53/53.md https://vuldb.com/submit/813927 https://vuldb.com/vuln/365515 https://vuldb.com/vuln/365515/cti https://www.totolink.net/