CVE-2025-45865 Memory corruption in n/a
A buffer overflow in the TOTOLINK A3002R router allows attackers to execute arbitrary code or cause a denial of service via the dnsaddr parameter.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-45865?
CVE-2025-45865 is a critical memory corruption vulnerability in Totolink A3002r Firmware, published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the dnsaddr parameter in the formDhcpv6s interface.
Weakness: CWE-120
Which versions are affected by CVE-2025-45865?
It affects 1 product.
Products include Totolink A3002r Firmware.
How do I fix CVE-2025-45865?
No fix has been published for CVE-2025-45865 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-2025-45865 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-45865 exists.
Other vulnerabilities in Totolink A3002r Firmware
Sources
Also known as GHSA-v7m3-xggw-4h6v.