Buffer overflow in Netcore Nr255-V
CVE-2026-76860
Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in wake_up_set.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.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Netcore Nr255-v — versions 1.5.130703
Weakness classification (CWE)
References
- disclosure@vulncheck.com (third-party-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76860?
- CVE-2026-76860 is a high-severity vulnerability in Netcore Nr255-V, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-09-15.
- How severe is CVE-2026-76860?
- High severity. CVSS v3 base score is 8.8 out of 10.