VDB
CVE-2026-24423
CVE-2026-24423
PUBLISHED
KEV
CVSS 9.300000190734863 CRITICAL
SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API method. The attacker could point the SmarterMail to the malicious HTTP server, which serves the malicious OS command. This command will be executed by the vulnerable application.
EPSS 83.40% · 99.3th percentile
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
83.40%
99.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| SmarterTools | SmarterMail | 0, 0 |
| smartertools | smartermail | 0, 0, 0 |
Exploit Intelligence
- (crowdsec)
- (crowdsec)
- (crowdsec)
- (crowdsec)
- CIRCL exploited: CVE-2026-24423 (circl-sighting)
- ET WEB_SPECIFIC_APPS SmarterTools SmarterMail ConnectToHub Remote Code Execution (CVE-2026-24423) (emergingthreats)
- ET WEB_SPECIFIC_APPS SmarterTools SmarterMail ConnectToHub Remote Code Execution (CVE-2026-24423) (emergingthreats)
- (crowdsec)
- CIRCL seen: CVE-2026-24423 (circl-sighting)
- CIRCL seen: CVE-2026-24423 (circl-sighting)
…and 163 more exploits
Timeline
- Nov 8, 2022 CrowdSec Sighting
- Dec 11, 2022 CrowdSec Sighting
- Dec 18, 2022 CrowdSec Sighting
- Mar 9, 2023 CrowdSec Sighting
- Apr 5, 2023 CrowdSec Sighting
- May 28, 2023 CrowdSec Sighting
- Nov 23, 2023 CrowdSec Sighting
- May 4, 2025 CrowdSec Sighting
- Jun 10, 2025 CrowdSec Sighting
- Jun 19, 2025 CrowdSec Sighting
- Jul 31, 2025 CrowdSec Sighting
- Nov 20, 2025 CrowdSec Sighting
References
- https://www.smartertools.com/smartermail/release-notes/current patch
- https://code-white.com/public-vulnerability-list/#systemadminsettingscontrollerconnecttohub-missing-authentication-in-smartermail third-party-advisory
- https://www.vulncheck.com/advisories/smartertools-smartermail-unauthenticated-rce-via-connecttohub-api third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24423 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-24423 advisory