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CVE-2026-8138

Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow

HIGH
8.8
CVSS Score
Published: May 8, 2026 at 04:15 AM UTC
Updated: October 26, 2026 at 12:10 AM UTC
1 product affected across 1 vendorCX12L Firmware· also runs on 1 platform

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CX12L Firmware· Tenda
95%
16.03.53.12
tenda-cx12l (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/361927
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/361927/cti
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/submit/808867
ExploitIssue TrackingThird Party Advisory
Source: cverecord
https://github.com/cve-a/lvdan/issues/6
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121CWE-119

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