CVE-2026-16248 in AC10
Summary
by MITRE • 07/20/2026
A vulnerability was found in Tenda AC10 16.03.10.09_multi_TDE01. This issue affects the function fromAdvSetLanip of the file /goform/AdvSetLanip of the component httpd/netctrl. The manipulation of the argument GetValue/SetValue results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 07/20/2026
The vulnerability identified in Tenda AC10 router firmware version 16.03.10.09_multi_TDE01 represents a critical stack-based buffer overflow flaw within the httpd/netctrl component. This issue manifests specifically within the function fromAdvSetLanip located in the /goform/AdvSetLanip file, where improper handling of input parameters creates exploitable conditions. The vulnerability stems from inadequate bounds checking when processing the GetValue/SetValue arguments, allowing attackers to manipulate memory layout through crafted inputs that exceed allocated buffer sizes.
The technical implementation of this flaw demonstrates a classic stack-based buffer overflow vulnerability classified under CWE-121, where insufficient validation permits arbitrary data to overwrite adjacent memory locations on the call stack. The attack vector is remotely accessible, meaning malicious actors can exploit this vulnerability without physical access to the device, potentially compromising the entire network infrastructure. This remote exploitation capability significantly amplifies the threat landscape as attackers can target vulnerable devices from anywhere on the internet.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it provides potential for complete system compromise and persistent access to networks. Attackers could leverage this buffer overflow to execute arbitrary code, escalate privileges, or establish backdoor access points within the affected network environment. The public availability of exploit code further compounds the risk, as it removes barriers to exploitation and enables widespread compromise of vulnerable Tenda AC10 devices across multiple network environments.
Mitigation strategies should prioritize immediate firmware updates from Tenda to address the underlying buffer overflow conditions in the httpd/netctrl component. Network administrators must implement proper input validation controls at both application and network levels, including implementing robust parameter sanitization for all form inputs. Additional protective measures include deploying network segmentation policies, disabling unnecessary remote management features, and implementing intrusion detection systems to monitor for exploitation attempts. The vulnerability aligns with ATT&CK technique T1210 - Exploitation of Remote Services, highlighting the importance of maintaining up-to-date security controls and proper access restrictions for network services.
This particular implementation flaw demonstrates how insufficient input validation in web-based administrative interfaces can create severe security implications, particularly when combined with remote accessibility. The vulnerability serves as a reminder of the critical importance of secure coding practices and comprehensive security testing for network infrastructure devices. Organizations should conduct thorough vulnerability assessments of their entire network ecosystem to identify similar patterns across other router models and firmware versions. Regular security monitoring and patch management procedures become essential defensive measures against such remotely exploitable vulnerabilities that can compromise network integrity and confidentiality.