CVE-2026-7078
Published: 27 April 2026
Summary
CVE-2026-7078 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda F456 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 23.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Requires validation of the 'page' argument in the fromSetIpBind function to prevent buffer overflow from improper input handling.
Implements memory protection mechanisms that directly mitigate buffer overflow exploits leading to arbitrary code execution.
Ensures timely remediation of the specific buffer overflow flaw in Tenda F456 firmware through patching.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow in public-facing httpd web interface on router allows remote low-privileged authenticated users to achieve arbitrary code execution, directly mapping to T1190 (exploiting public-facing application) and T1068 (exploitation for privilege escalation).
NVD Description
A security flaw has been discovered in Tenda F456 1.0.0.5. The impacted element is the function fromSetIpBind of the file /goform/SetIpBind of the component httpd. The manipulation of the argument page results in buffer overflow. The attack can be launched…
more
remotely. The exploit has been released to the public and may be used for attacks.
Deeper analysisAI
CVE-2026-7078 is a buffer overflow vulnerability affecting the Tenda F456 router on firmware version 1.0.0.5. The issue lies in the fromSetIpBind function within the /goform/SetIpBind file of the httpd component, where manipulation of the "page" argument triggers the overflow. Published on 2026-04-27, it is associated with CWEs-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-120 (Buffer Copy without Checking Size of Input).
The vulnerability carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), denoting high severity. A low-privileged user can exploit it remotely with low complexity and no user interaction, potentially achieving high impacts on confidentiality, integrity, and availability, such as arbitrary code execution on the device.
Advisories and references, including VULDB entries (vuldb.com/vuln/359653) and a GitHub repository (github.com/Litengzheng/vuldb_new/blob/main/F456/vul_129/README.md), document the flaw and provide a publicly released exploit. Practitioners should consult the vendor site (tenda.com.cn) for mitigation guidance or firmware patches, as no specific updates are detailed in the available information.
The public availability of the exploit heightens the risk of real-world attacks against exposed Tenda F456 devices.
Details
- CWE(s)