CVE-2026-76861: high-severity vulnerability in Netcore NR255-V
Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in ntools_tcpdump_start_set.cgi
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.7%
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.
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
Affected products
Netcore · NR255-VRelated CVEs — Netcore NR255-V
In the same product, most dangerous first.
CVE-2026-76869HIGHNetcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in reboot_timer_set.cgiEPSS 0.6%CVE-2026-76866HIGHNetcore NR255-V 1.5.130703 OS Command Argument Injection via Unquoted DDNS ParametersEPSS 0.6%CVE-2026-76862HIGHNetcore NR255-V 1.5.130703 OS Command Argument Injection in Nettools tcpdump Launch PathsEPSS 0.5%CVE-2026-76860HIGHNetcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID TokenizationEPSS 0.5%CVE-2026-76868MEDIUMNetcore NR255-V 1.5.130703 NULL Pointer Dereference in route_policy_add.cgi via Missing exit_portEPSS 0.5%CVE-2026-76865MEDIUMNetcore NR255-V 1.5.130703 NULL Pointer Dereference via Unchecked atoi() in QoS Setter HandlersEPSS 0.5%