CVE-2026-5101 — MEDIUM (6.3)

Vulnerability Description

A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might 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-78 CWE-77

References

https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_39/README.mdExploitThird Party Advisory
https://vuldb.com/submit/779128VDB EntryThird Party Advisory
https://vuldb.com/vuln/354126Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354126/ctiThird Party AdvisoryVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2026-5101?

CVE-2026-5101 is a vulnerability with a CVSS score of 6.3 (MEDIUM). A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of t...

How severe is CVE-2026-5101?

CVE-2026-5101 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-2026-5101?

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