Incident Score: Analysis & Impact (SMA1768202332)

In this Rankiteo incident briefing, we review the SmarterTools breach identified under incident ID SMA1768202332.

The analysis begins with a detailed overview of SmarterTools's information like the linkedin page: https://www.linkedin.com/company/smartertools, the number of followers: 1159, the industry type: Software Development and the number of employees: 23 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 661 and after the incident was 656 with a difference of -5 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 SmarterTools and their customers.

On 29 December 2025, SmarterTools disclosed Remote Code Execution (RCE) issues under the banner "CVE-2025-52691: Pre-Auth RCE in SmarterTools’ SmarterMail".

A flaw in SmarterTools’ SmarterMail business email and collaboration solution allows unauthenticated users to upload arbitrary files, potentially leading to remote code execution (RCE).

The disruption is felt across the environment, affecting SmarterMail business email and collaboration servers.

In response, moved swiftly to contain the threat with measures like Patch released (Build 9413), and began remediation that includes Immediate update to Build 9413 or later, while recovery efforts such as Review logs for suspicious file uploads or anomalous behavior continue, and stakeholders are being briefed through Public disclosure delayed; lack of clear advisories.

The case underscores how Ongoing (evidence of exploitation attempts, but no confirmed successful attacks), teams are taking away lessons such as Silent patching without clear communication leaves systems exposed and undermines trust. Public disclosure timelines should be transparent to ensure users are aware of critical vulnerabilities, and recommending next steps like Immediately update SmarterMail to Build 9413 or later, Review logs for suspicious file uploads or anomalous behavior between October and December 2025 and Improve communication strategies for security patches to avoid silent patching, with advisories going out to stakeholders covering SmarterMail administrators urged to verify Build 9413 or later and review logs for suspicious activity.

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.