CVE-2026-76860CWE-121

CVE-2026-76860

High · published September 16, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
45.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00549 · 45.2th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-09-16T02:17Z
References (2)
https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-wake-up-set-overflow.md · [email protected]https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stack-based-buffer-overflow-in-wake-up-set-cgi-via-mac-and-id-tokenization · [email protected]
EPSS history
Timeline
  • 17 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 15 SEP 21:57Z
    Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID Tokenization
    cvelistv5