High severity7.5NVD Advisory· Published Nov 9, 2026· Updated Nov 9, 2026

CVE-2026-124561

Description

A vulnerability was determined in D-Link DIR-878 1.20B05. This impacts the function SetVLANSettings of the file prog.cgi of the component HNAP Handler. Executing a manipulation of the argument VID can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

AI Insight

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

Affected products

Dlink/DIR878llm-create
Range: 1.20B05
Zimo 666/DIR-878-cvesllm-fuzzy
Range: 1.20B05

Patches

Vulnerability mechanics

References

github.com/Zimo-666/DIR-878-cves/tree/main/03-settriggeradic-vlan-stack-overflownvd
vuldb.com/cve/CVE-2026-124561nvd
vuldb.com/submit/1035617nvd
vuldb.com/vuln/432893nvd
vuldb.com/vuln/432893/ctinvd
www.dlink.comnvd

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