CVE-2026-36786
Description
Tenda FH451 V1.0.0.9 has a stack overflow in fromDhcpListClient, allowing DoS via crafted HTTP requests.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Tenda FH451 V1.0.0.9 has a stack overflow in fromDhcpListClient, allowing DoS via crafted HTTP requests.
Vulnerability
A stack-based buffer overflow vulnerability exists in the fromDhcpListClient function within the fromDhcpListClient CGI handler of Tenda FH451 devices running firmware version V1.0.0.9 [1]. The vulnerability is reachable through a user-influenced HTTP parameter named list1 [1].
Exploitation
An attacker can exploit this vulnerability by sending a crafted HTTP request to the fromDhcpListClient CGI endpoint. The request should include a long value for the list1 parameter, such as a*888, and set LISTLEN to 1 [1]. This crafted input is then copied into a buffer on the stack, triggering the overflow [1].
Impact
Successful exploitation of this vulnerability can lead to a Denial of Service (DoS) condition. This may manifest as a process crash or general device instability [1].
Mitigation
No patched version or specific mitigation details are available in the provided references. The vulnerability affects Tenda FH451 V1.0.0.9 [1].
AI Insight generated on Jun 8, 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 Routers: 13 Stack Overflow and Command Injection Vulnerabilities DisclosedVypr Intelligence · Jun 8, 2026