CVE-2026-5178 — MEDIUM (6.3)

Vulnerability Description

A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this issue is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument vlanPriLan3 leads to command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Totolink	A3300R Firmware	17.0.0cu.557_b20221024
Totolink	A3300R	-

Related Weaknesses (CWE)

CWE-74 CWE-77

References

https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_vlanPriLan3_ExploitThird Party Advisory
https://vuldb.com/submit/779147Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354246Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354246/ctiPermissions RequiredVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2026-5178?

CVE-2026-5178 is a vulnerability with a CVSS score of 6.3 (MEDIUM). A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this issue is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argume...

How severe is CVE-2026-5178?

CVE-2026-5178 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-5178?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A3300R Firmware, Totolink A3300R.