CVE-2026-76869CWE-121

CVE-2026-76869

High · published September 16, 2026

CVSS v3.1
7.2
EPSS
1%
Percentile
46.6
In the wild
Unconfirmed
What it is

Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in reboot_timer_set.cgi caused by improper sscanf token parsing. Attackers can exploit this flaw by submitting crafted input to the affected endpoint to corrupt stack memory.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00572 · 46.6th 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-reboot-timer-overflow.md · [email protected]https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stack-based-buffer-overflow-in-reboot-timer-set-cgi · [email protected]
EPSS history
Timeline
  • 17 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 15 SEP 21:58Z
    Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in reboot_timer_set.cgi
    cvelistv5