CVE-2025-4496 — HIGH (8.8) — White Hats Nepal

Vulnerability Description

A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can 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	A3000Ru Firmware	4.1.8cu.5241_b20210927
Totolink	A3000Ru	-
Totolink	A810R Firmware	4.1.8cu.5241_b20210927
Totolink	A810R	-
Totolink	T10 Firmware	4.1.8cu.5241_b20210927
Totolink	T10	-
Totolink	A3100R Firmware	4.1.8cu.5241_b20210927
Totolink	A3100R	-
Totolink	A950Rg Firmware	4.1.8cu.5241_b20210927
Totolink	A950Rg	-
Totolink	A800R Firmware	4.1.8cu.5241_b20210927
Totolink	A800R	-
Totolink	N600R Firmware	4.1.8cu.5241_b20210927
Totolink	N600R	-

Related Weaknesses (CWE)

CWE-120 CWE-119

References

https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.mdBroken Link
https://vuldb.com/?ctiid.308212Permissions RequiredVDB Entry
https://vuldb.com/?id.308212Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.567081Third Party AdvisoryVDB Entry
https://www.totolink.net/Product
https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.mdBroken Link

FAQ

What is CVE-2025-4496?

CVE-2025-4496 is a vulnerability with a CVSS score of 8.8 (HIGH). A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunu...

How severe is CVE-2025-4496?

CVE-2025-4496 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-2025-4496?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A3000Ru Firmware, Totolink A3000Ru, Totolink A810R Firmware, Totolink A810R, Totolink T10 Firmware.