CVE-2026-24423
SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability
IN CISA KEV
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.
- Vendor
- SmarterTools
- Product
- SmarterMail
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-306
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2026-02-05
- Due date
- 2026-02-26
- Ransomware use
- Known
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS
88.2% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.