CVE-2023-3336

5.3 mediumEPSS 0.6%

Medium (5.3) in moxa tn-5900 firmware. EPSS 0.6% chance of exploitation in the next 30 days.

TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWEs: CWE-203, CWE-204
Published: 2023-07-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

moxa:tn-5900_firmware

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230401-tn-5900-series-user-enumeration-vulnerability
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230401-tn-5900-series-user-enumeration-vulnerability

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