CVE-2025-5902 — HIGH (8.8) — White Hats Nepal

Vulnerability Description

A vulnerability was found in TOTOLINK T10 4.1.8cu.5207 and classified as critical. This issue affects the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument slaveIpList leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	T10 Firmware	4.1.8cu.5207
Totolink	T10	-

Related Weaknesses (CWE)

CWE-120 CWE-119

References

https://candle-throne-f75.notion.site/TOTOLINK-T10-setUpgradeFW-20bdf0aa11858089ExploitThird Party Advisory
https://vuldb.com/?ctiid.311675Permissions RequiredVDB Entry
https://vuldb.com/?id.311675Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.592246Third Party AdvisoryVDB Entry
https://www.totolink.net/Product
https://candle-throne-f75.notion.site/TOTOLINK-T10-setUpgradeFW-20bdf0aa11858089ExploitThird Party Advisory

FAQ

What is CVE-2025-5902?

CVE-2025-5902 is a vulnerability with a CVSS score of 8.8 (HIGH). A vulnerability was found in TOTOLINK T10 4.1.8cu.5207 and classified as critical. This issue affects the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. ...

How severe is CVE-2025-5902?

CVE-2025-5902 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-5902?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink T10 Firmware, Totolink T10.