Net-Monitor Ltd. Breach Incident Score: Analysis & Impact (NET1766986296)

In this Rankiteo incident briefing, we review the Net-Monitor Ltd. breach identified under incident ID NET1766986296.

The analysis begins with a detailed overview of Net-Monitor Ltd.'s information like the linkedin page: https://www.linkedin.com/company/net-monitor, the number of followers: 0, the industry type: Software Development and the number of employees: 4 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 793 and after the incident was 792 with a difference of -1 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Net-Monitor Ltd. and their customers.

On 24 December 2025, a cybersecurity incident called "Critical Net-SNMP Vulnerability Exposes Networks to RCE Attacks" came to light.

A critical vulnerability (CVE-2025-68615) has been discovered in the Net-SNMP software suite, widely used for network management and monitoring.

The disruption is felt across the environment, affecting Network management systems using Net-SNMP snmptrapd.

In response, moved swiftly to contain the threat with measures like Firewall UDP port 162 to restrict access to trusted IPs, and began remediation that includes Update to Net-SNMP 5.9.5 or 5.10.pre2.

The case underscores how Vulnerability disclosed and patched, and recommending next steps like Immediately update Net-SNMP to patched versions (5.9.5 or 5.10.pre2) and firewall UDP port 162 to restrict access to trusted IPs, with advisories going out to stakeholders covering Administrators advised to update Net-SNMP and restrict SNMP trap port access.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (95%), with evidence including buffer overflow in snmptrapd (CVE-2025-68615), and snmptrapd listens on UDP port 162 by default. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with high confidence (90%), supported by evidence indicating potential for remote code execution (RCE) if exploited. Under the Impact tactic, the analysis identified Endpoint Denial of Service (T1499) with high confidence (95%), supported by evidence indicating flaw can crash the daemon—resulting in a denial-of-service (DoS) and Resource Hijacking (T1496) with moderate to high confidence (70%), supported by evidence indicating potential RCE could allow attackers to hijack network management systems. Under the Defense Evasion tactic, the analysis identified Exploitation for Defense Evasion (T1211) with moderate to high confidence (80%), supported by evidence indicating buffer overflow vulnerability may bypass input validation controls. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.