CVE-2025-45843 Memory corruption in n/a
An authenticated attacker can trigger a stack overflow in the TOTOLINK NR1800X router via the ssid parameter, potentially leading to code execution.
- 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-2025-45843?
CVE-2025-45843 is a high-severity memory corruption vulnerability in n/a, published on 8 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function.
Which versions are affected by CVE-2025-45843?
It affects 1 product.
Products include Totolink Nr1800x Firmware.
How do I fix CVE-2025-45843?
No fix has been published for CVE-2025-45843 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-2025-45843 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-45843 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4cwh-m6gc-c4p6.