CVE-2026-36816
Description
Tenda W15E v15.11.0.10 has a buffer overflow in formAddWewifiWhiteUser, allowing DoS via crafted HTTP requests.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Tenda W15E v15.11.0.10 has a buffer overflow in formAddWewifiWhiteUser, allowing DoS via crafted HTTP requests.
Vulnerability
A buffer overflow vulnerability exists in the formAddWewifiWhiteUser function of Shenzhen Tenda Technology Co., Ltd Tenda W15E version 15.11.0.10. The vulnerability is triggered by the wewifiWhiteUserInfo parameter, which is processed by websGetVar and then copied using strncpy based on the position of a newline character. If the wewifiWhiteUserInfo parameter is sufficiently long, this can lead to a buffer overflow [1].
Exploitation
An attacker can exploit this vulnerability by sending a crafted HTTP request to the formAddWewifiWhiteUser CGI endpoint. The request must include a wewifiWhiteUserInfo parameter containing a long string followed by a newline character, such as a*888 + '\n'*50. This crafted input will cause the strncpy function to write beyond the allocated buffer [1].
Impact
Successful exploitation of this vulnerability can lead to a Denial of Service (DoS) on the affected device. This may manifest as a process crash or general device instability, rendering the device unusable [1].
Mitigation
No patched version or specific mitigation details are available in the provided references. The vulnerability affects Tenda W15E version 15.11.0.10 [1].
AI Insight generated on Jun 9, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
1News mentions
1- Tenda W15E: Ten Buffer Overflow Vulnerabilities Disclosed TogetherVypr Intelligence · Jun 9, 2026