CVE-2026-18898 UTT HiPER 1200GW ConfigAdvideo strcpy stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the UTT HiPER 1200GW router via the ConfigAdvideo interface, potentially executing arbitrary code.
- 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-2026-18898?
CVE-2026-18898 is a high-severity memory corruption vulnerability in UTT HiPER 1200GW, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in UTT HiPER 1200GW up to v2.5.3-170306. This affects the function strcpy of the file /goform/ConfigAdvideo. The manipulation of the argument timestart results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-18898?
How do I fix CVE-2026-18898?
No fix has been published for CVE-2026-18898 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-2026-18898 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18898 exists.
Sources
Also known as GHSA-7xrf-7g6v-89wc.