CVE-2025-2097 TOTOLINK EX1800T cstecgi.cgi setRptWizardCfg stack-based overflow

High 8.7 Published 7 Mar 2025 Updated 10 Mar 2025

Remote attackers can trigger a stack-based buffer overflow in the setRptWizardCfg function to potentially execute arbitrary code on the device.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-2097?

CVE-2025-2097 is a high-severity memory corruption vulnerability in TOTOLINK EX1800T, published on 7 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability, which was classified as critical, has been found in TOTOLINK EX1800T 9.1.0cu.2112_B20220316. This issue affects the function setRptWizardCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument loginpass leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-787, CWE-119

Which versions are affected by CVE-2025-2097?

It affects 1 product.

Products include Totolink Ex1800t Firmware.

How do I fix CVE-2025-2097?

No fix has been published for CVE-2025-2097 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-2097 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2097 exists.

Sources

Also known as GHSA-7g36-rwff-h8xw.