CVE-2025-67189 Memory corruption in n/a
A remote attacker can exploit a buffer overflow in the setParentalRules interface to cause denial of service or execute arbitrary code on TOTOLINK A950RG routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-67189?
CVE-2025-67189 is a medium-severity memory corruption vulnerability in n/a, published on 3 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution.
Weakness: CWE-120
Which versions are affected by CVE-2025-67189?
It affects 1 product.
Products include Totolink A950rg Firmware.
How do I fix CVE-2025-67189?
No fix has been published for CVE-2025-67189 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-2025-67189 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-67189 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-27qh-whg4-7h58.