CVE-2026-75013

TOTOLINK EX1200L cstecgi.cgi setWizardCfg null pointer dereference

Assigner: VulDB
Reserved: 17.08.2026 Published: 17.08.2026 Updated: 17.08.2026

A vulnerability was detected in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi. The manipulation results in null pointer dereference. The attack can be launched remotely. The exploit is now public and may be used.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C/E:POC/RL:ND/RC:UR
CVSS Score: 6.8

Access Vector	Network	Confidentiality Impact	None
Access Complexity	Low	Integrity Impact	None
Authentication	Single	Availability Impact	Complete

CVSS 2.0

Product Status

Vendor	TOTOLINK
Product	EX1200L
Versions	Version 9.3.5u.6146_B20201023 is affected

Vendor

TOTOLINK

Product

EX1200L

Versions

Version 9.3.5u.6146_B20201023 is affected

Credits

yuxin_wang (VulDB User) reporter

References

Problem Types