PatchTheCVECVE-2026-8138: A vulnerability was found in Tenda CX12L 16.03.53.12
CVE-2026-8138 is a high-severity flaw (CVSS 8.8) affecting cx12l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-8138?
cx12l firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-8138 being exploited?
CVE-2026-8138 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-8138 affect?
CVE-2026-8138 affects cx12l firmware. Severity is high (CVSS 8.8). 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
How urgent is CVE-2026-8138?
Priority 47/100. High severity; Public exploit reference