cve.bz

CVE-2026-24423

9.3 criticalKEVEPSS 88%

Critical (9.3) in SmarterTools SmarterMail. In CISA KEV since 2026-02-05, with known ransomware use. EPSS 88% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical
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

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
88% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV
listed 2026-02-05, due 2026-02-26, known ransomware use
CWE
CWE-306
Published
Modified
Record from
the NVD, synced

Affected

References

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