Exploited Vulnerabilities DailyCVE-2026-24423: SmarterTools SmarterMail
EPSS88.1%No. 500 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV3
Same product3
| Field | Value |
|---|---|
| Vendor | SmarterTools |
| Product | SmarterMail |
| Name | SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability |
| Added to KEV | 2026-02-05 |
| US federal due date | 2026-02-26 |
| Ransomware use | Known |
| CWE | CWE-306 |
CISA description
SmarterTools SmarterMail contains a missing authentication for critical function vulnerability in the ConnectToHub API method. This could allow the attacker to point the SmarterMail instance to a malicious HTTP server which serves the malicious OS command and could lead to command execution.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2026-23760 | SmarterTools SmarterMail | 2026-01-26 | 96.5% | Known |
| CVE-2025-52691 | SmarterTools SmarterMail | 2026-01-26 | 85.6% | Known |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A SmarterTools SmarterMail vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-02-05.