CVE-2026-3700 UTT HiPER 810G formConfigDnsFilterGlobal strcpy buffer overflow
Remote attackers can exploit a buffer overflow in the DNS filter configuration to execute arbitrary code or crash the UTT HiPER 810G router.
- 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-2026-3700?
CVE-2026-3700 is a high-severity memory corruption vulnerability in UTT HiPER 810G, published on 8 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in UTT HiPER 810G up to 1.7.7-171114. Affected is the function strcpy of the file /goform/formConfigDnsFilterGlobal. This manipulation causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2026-3700?
It affects 1 product.
Products include Utt 810g Firmware.
How do I fix CVE-2026-3700?
No fix has been published for CVE-2026-3700 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-2026-3700 being exploited?
There is no known exploitation of CVE-2026-3700 in the wild and no public exploit code.
Other vulnerabilities in UTT HiPER 810G
- CVE-2026-3814 UTT HiPER 810G getOneApConfTempEntry strcpy buffer overflow
- CVE-2026-3815 UTT HiPER 810G formApMail strcpy buffer overflow
- CVE-2026-3698 UTT HiPER 810G NTP strcpy buffer overflow
- CVE-2026-3699 UTT HiPER 810G formRemoteControl strcpy buffer overflow
- CVE-2026-2981 UTT HiPER 810G formTaskEdit_ap strcpy buffer overflow
Sources
Also known as GHSA-gf2c-cq33-9pf7.