CVE-2026-76860: Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID Tokenization

Published Sep 15, 2026

Updated

Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in wakeupset.cgi caused by unbounded tokenization of MAC and ID input. Attackers can supply crafted MAC and ID values to the affected endpoint to overflow the stack buffer and corrupt program memory.

Affected Software

1 affected component

Netcore NR255-V=1.5.130703

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Netcore NR255-V to a version that resolves this vulnerability.
Fixed in 1.5.130703

Event History

Sep 15, 2026

CVE Published

via MITRE·09:57 PM

Data Sourced

via MITRE·09:57 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What level of access does an attacker need to exploit this issue?

The attack vector is network-based and requires low privileges. No user interaction is required.

Which input reaches the vulnerable code?

The affected wake_up_set.cgi endpoint processes MAC and ID values. Crafted values for those inputs can trigger the stack buffer overflow.

What is the potential impact of successful exploitation?

Successful exploitation can corrupt program memory. The reported severity metrics indicate potential high impact to confidentiality, integrity, and availability.