High severity8.8NVD Advisory· Published Aug 14, 2026

CVE-2026-19812

Description

A weakness has been identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component product.so. This manipulation of the argument File causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Totolink/A8000Rllm-fuzzy
Range: 4.1.2cu.5137_B20200730

Patches

Vulnerability mechanics

References

github.com/panda666-888/vuls/blob/main/totolink/a800r/UploadCustomModule.mdnvd
vuldb.com/cve/CVE-2026-19812nvd
vuldb.com/submit/869428nvd
vuldb.com/vuln/389948nvd
vuldb.com/vuln/389948/ctinvd
www.totolink.netnvd

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