CVE-2026-7055 Tenda F456 httpd VirtualSer fromVirtualSer buffer overflow
Remote attackers can trigger a buffer overflow in the Tenda F456 httpd service via the VirtualSer endpoint, potentially leading to arbitrary code execution.
- 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-2026-7055?
CVE-2026-7055 is a high-severity memory corruption vulnerability in Tenda F456, published on 26 Apr 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 Tenda F456 1.0.0.5. This issue affects the function fromVirtualSer of the file /goform/VirtualSer of the component httpd. The manipulation of the argument menufacturer/Go leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-7055?
It affects 1 product.
Products include Tenda F456 Firmware.
How do I fix CVE-2026-7055?
No fix has been published for CVE-2026-7055 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-2026-7055 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7055 exists.
Other vulnerabilities in Tenda F456
- CVE-2026-7078 Tenda F456 httpd SetIpBind fromSetIpBind buffer overflow
- CVE-2026-7079 Tenda F456 httpd AdvSetWan fromAdvSetWan buffer overflow
- CVE-2026-7080 Tenda F456 httpd PPTPUserSetting fromPPTPUserSetting buffer overflow
- CVE-2026-7081 Tenda F456 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow
- CVE-2026-7082 Tenda F456 httpd WrlExtraSet formWrlExtraSet buffer overflow
Sources
Also known as GHSA-rqx8-m6g2-g4gx.