High severity8.8NVD Advisory· Published Sep 15, 2026

CVE-2026-76852

Description

Netcore NR268 firmware version 1.7.121109 has an improper integrity verification flaw in mtd_write allowing forged firmware authenticity checks. Attackers can exploit put_file.cgi and check_image_uuid.c to bypass firmware signature validation and load unauthorized firmware images.

AI Insight

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

Affected products

Netcore/NR268llm-create
Range: 1.7.121109
Draw Ctf/Netcore Router Public Refsllm-fuzzy
Range: 1.7.121109

Patches

Vulnerability mechanics

References

github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr268-firmware-forgery.mdnvd
www.vulncheck.com/advisories/netcore-nr268-1.7.121109-forgeable-firmware-authenticity-check-in-mtd-writenvd

News mentions

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