CVE-2025-14139 UTT 进取 520W formConfigDnsFilterGlobal strcpy buffer overflow
A buffer overflow in the UTT 520W router allows attackers to execute arbitrary code or escalate privileges via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-14139?
CVE-2025-14139 is a medium-severity memory corruption vulnerability in UTT 进取 520W, published on 6 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. Impacted is the function strcpy of the file /goform/formConfigDnsFilterGlobal. Such manipulation of the argument timeRangeName leads to buffer overflow. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-14139?
It affects 1 product.
Products include Utt 520w Firmware.
How do I fix CVE-2025-14139?
No fix has been published for CVE-2025-14139 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-2025-14139 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14139 exists.
Other vulnerabilities in UTT 进取 520W
- CVE-2026-31059 Command injection in n/a
- CVE-2026-2071 UTT 进取 520W formP2PLimitConfig strcpy buffer overflow
- CVE-2026-2066 UTT 进取 520W formIpGroupConfig strcpy buffer overflow
- CVE-2026-2067 UTT 进取 520W formTimeGroupConfig strcpy buffer overflow
- CVE-2026-2068 UTT 进取 520W formSyslogConf strcpy buffer overflow
Sources
Also known as GHSA-2853-mpq7-6f9j.