CVE-2026-76861

HighCVSS 8.8/10Last modified Sep 21, 2026

Description

Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in ntools_tcpdump_start_set.cgi caused by an unsized sprintf call when processing form values. An attacker can submit crafted input to this cgi endpoint to overflow the stack buffer and potentially execute arbitrary code.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121

Affected software

No affected versions have been published.

Timeline

Published
Sep 15, 2026
Last modified
Sep 21, 2026
NVD status
Deferred

Related CVEs from 2026

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CVE-2026-76861: High severity, CVSS 8.8 | Vulnix