CVE-2025-11305 UTT HiPER 840G formTaskEdit strcpy buffer overflow
Remote attackers can trigger a buffer overflow in the UTT HiPER 840G router via the formTaskEdit interface, potentially leading to code execution or service disruption.
- 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-2025-11305?
CVE-2025-11305 is a high-severity memory corruption vulnerability in UTT HiPER 840G, published on 5 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in UTT HiPER 840G up to 3.1.1-190328. Affected by this issue is the function strcpy of the file /goform/formTaskEdit. The manipulation of the argument txtMin2 leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public 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-2025-11305?
It affects 1 product.
Products include Utt 840g Firmware.
How do I fix CVE-2025-11305?
No fix has been published for CVE-2025-11305 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-2025-11305 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11305 exists.
Other vulnerabilities in UTT HiPER 840G
- CVE-2025-10756 UTT HiPER 840G getOneApConfTempEntry buffer overflow
- CVE-2025-7570 UTT HiPER 840G aspRemoteApConfTempSend buffer overflow
- CVE-2025-7571 UTT HiPER 840G aspApBasicConfigUrcp buffer overflow
- CVE-2025-7117 UTT HiPER 840G websWhiteList buffer overflow
- CVE-2025-7118 UTT HiPER 840G formPictureUrl buffer overflow
Sources
Also known as GHSA-39v4-qq8h-r3p9.