Related Threat Clusters
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Ransomware Exploits Critical SmarterMail Vulnerability CVE-2026-24423
A critical vulnerability in SmarterTools' SmarterMail, identified as CVE-2026-24423, is being actively exploited in ransomware attacks. The flaw allows unauthenticated remote code execution via malicious HTTP requests,…
35 articles · Updated February 6, 2026 -
Active Exploitation of SmarterMail Vulnerability WT-2026-0001 Post-Patch
A vulnerability in SmarterTools SmarterMail, tracked as WT-2026-0001, is being actively exploited just two days after a patch was released on January 15, 2026. As of now, no CVE has been assigned to this flaw, raising…
6 articles · Updated January 22, 2026 -
Critical Vulnerability in SmarterMail Allows Remote Code Execution
SmarterTools has issued an urgent security advisory for a critical vulnerability in SmarterMail, tracked as CVE-2025-52691. This flaw enables attackers to execute remote code on affected mail servers, posing a…
6 articles · Updated December 30, 2025 -
ESA Confirms Cybersecurity Breach of External Servers
The European Space Agency (ESA) has confirmed a cybersecurity breach affecting a limited number of external servers. The breach involves a threat actor offering 200 GB of allegedly stolen data for sale on a dark web…
20 articles · Updated December 30, 2025 -
US Cyber Agency Adds Six Vulnerabilities to KEV Catalog
The US cyber agency has added six vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog. Among these are a Microsoft zero-day vulnerability, a SmarterTools SmarterMail authentication bypass bug, and a…
2 articles · Updated January 27, 2026
Recent Intelligence Reports
- SmarterTools patches critical SmarterMail flaw allowing code execution — Securityaffairs · January 30, 2026
- SmarterTools SmarterMail RCE — Filestore.Fortinet · January 29, 2026
- Hacked: US cyber agency adds six vulnerabilities to known — Cybersecurityconnect.Au · January 27, 2026
- Critical SmarterMail vulnerability under attack, no CVE yet — Securityaffairs.Co · January 22, 2026
- European Space Agency Confirms Breach of Servers Outside the Corporate Network — Cybersecuritynews · December 30, 2025
- Critical Vulnerability in SmarterMail Let Attackers Execute Remote Code — Cybersecuritynews · December 30, 2025