CVE-2026-76860: Stack-based Buffer Overflow in Netcore NR255-V
Netcore NR255-V version 1.5.130703 has a stack-based buffer overflow vulnerability in the wake_up_set.cgi endpoint. This occurs due to unbounded tokenization of MAC and ID input, allowing attackers to supply crafted values that overflow the stack buffer and corrupt program memory. The vulnerability has a high severity with a CVSS 4.0 score of 8.7.
AI Analysis
Technical Summary
CVE-2026-76860 is a stack-based buffer overflow vulnerability in Netcore NR255-V version 1.5.130703. The flaw exists in the wake_up_set.cgi component where unbounded tokenization of MAC and ID input parameters allows an attacker to overflow the stack buffer. This memory corruption could lead to undefined behavior or potential code execution. The vulnerability is remotely exploitable without user interaction and requires low attack complexity with limited privileges.
Potential Impact
Successful exploitation of this vulnerability can lead to stack memory corruption, which may result in denial of service or potentially arbitrary code execution on the affected device. The vulnerability is remotely exploitable over the network without user interaction, increasing the risk to affected systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict network access to the affected endpoint and monitor for suspicious activity targeting wake_up_set.cgi.
CVE-2026-76860: Stack-based Buffer Overflow in Netcore NR255-V
Description
Netcore NR255-V version 1.5.130703 has a stack-based buffer overflow vulnerability in the wake_up_set.cgi endpoint. This occurs due to unbounded tokenization of MAC and ID input, allowing attackers to supply crafted values that overflow the stack buffer and corrupt program memory. The vulnerability has a high severity with a CVSS 4.0 score of 8.7.
CVSS v4.0
Score 8.7high
Affected software
Netcore
NR255-V
pkg:github/draw-ctf/netcore-router-public-refsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76860 is a stack-based buffer overflow vulnerability in Netcore NR255-V version 1.5.130703. The flaw exists in the wake_up_set.cgi component where unbounded tokenization of MAC and ID input parameters allows an attacker to overflow the stack buffer. This memory corruption could lead to undefined behavior or potential code execution. The vulnerability is remotely exploitable without user interaction and requires low attack complexity with limited privileges.
Potential Impact
Successful exploitation of this vulnerability can lead to stack memory corruption, which may result in denial of service or potentially arbitrary code execution on the affected device. The vulnerability is remotely exploitable over the network without user interaction, increasing the risk to affected systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict network access to the affected endpoint and monitor for suspicious activity targeting wake_up_set.cgi.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T21:47:08.935Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9c06c55bf5e2cf56f8241
Added to database: 09/15/2026, 22:02:20 UTC
Last enriched: 09/15/2026, 22:24:52 UTC
Last updated: 09/16/2026, 03:06:22 UTC
Views: 2
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