CVE-2026-4862 UTT HiPER 1250GW Parameter formConfigDnsFilterGlobal strcpy buffer overflow
Remote attackers can trigger a buffer overflow in the DNS filter configuration handler, 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-2026-4862?
CVE-2026-4862 is a high-severity memory corruption vulnerability in UTT HiPER 1250GW, published on 26 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in UTT HiPER 1250GW up to 3.2.7-210907-180535. This issue affects the function strcpy of the file /goform/formConfigDnsFilterGlobal of the component Parameter Handler. Such manipulation of the argument GroupName leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-4862?
How do I fix CVE-2026-4862?
No fix has been published for CVE-2026-4862 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-2026-4862 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4862 exists.
Sources
Also known as GHSA-rr72-28mj-44vr.