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CVE-2026-8138

Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow

CVSS 8.7 HIGHEPSS 0.6%CWE-119CWE-121
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 8.7EPSS 0.6%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
08 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A vulnerability was found in Tenda CX12L 16.03.53.12. This issue affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg”. The manipulation results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Tenda · CX12L
public PoCs found — 1
cve_referencegithub.com/cve-a/lvdan/issues/6unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/cve-a/lvdan/issues/6https://vuldb.com/submit/808867https://vuldb.com/vuln/361927https://vuldb.com/vuln/361927/ctihttps://www.tenda.com.cn/