CVE-2026-36808
Description
Tenda W15E v15.11.0.10 has a buffer overflow in formAddWebAuthUser via webAuthUserInfo, 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 formAddWebAuthUser via webAuthUserInfo, allowing DoS via crafted HTTP requests.
Vulnerability
A buffer overflow vulnerability exists in the formAddWebAuthUser function of Shenzhen Tenda Technology Co., Ltd Tenda W15E version v15.11.0.10. The vulnerability is triggered when processing the webAuthUserInfo parameter, which is retrieved using websGetVar. A long input to this parameter, specifically containing a newline character followed by many characters, can lead to the overflow [1].
Exploitation
An attacker can exploit this vulnerability by sending a crafted HTTP request to the formAddWebAuthUser CGI endpoint. The request must include a webAuthUserInfo parameter with a value that is excessively long and contains a newline character, such as a*888 + '\n'*50 [1].
Impact
Successful exploitation of this vulnerability can lead to a Denial of Service (DoS) condition. This may manifest as a process crash or device instability [1].
Mitigation
No patched version or specific mitigation details are available in the provided references. The vulnerability was publicly disclosed on 2026-06-06 [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