CVE-2026-23760Critical· 9.8▾ Hadal⚠ Exploited in the wildPoC availableSmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a r…
▾ Hadal zone — Critical and actively exploited (CISA KEV / 0day)
impact 53.9 · likelihood 19.3 · exploitation 25 · ransomware 5
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 2 sources. Availability, not in-the-wild use.
Exploit-prediction probability, daily snapshots since Aug 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due Feb 16, 2026
Last analysed / modified upstream
96%
2 GitHub repos · Nuclei ×1
96% → 97%
Added to the CISA catalog on Jan 26, 2026. Federal remediation due Feb 16, 2026. View catalog ↗
SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a reset token when resetting system administrator accounts. An unauthenticated attacker can supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance. NOTE: SmarterMail system administrator privileges grant the ability to execute operating system commands via built-in management functionality, effectively providing administrative (SYSTEM or root) access on the underlying host.
smartermail < 100.0.9511Upgrade past the affected range:
smartermail 100.0.9511Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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