CVE-2018-16988: Buffalo Open Xdmod

Critical severity, CVSS 9.8. EPSS: 1.6% chance of exploitation in the next 30 days.

An issue was discovered in Open XDMoD through 7.5.0. An authentication bypass (account takeover) exists due to a weak password reset mechanism. A brute-force attack against an MD5 rid value requires only 600 guesses in the plausible situation where the attacker knows that the victim has started a password-reset process (pass_reset.php, password_reset.php, XDUser.php) in the past few minutes.

Affected products

• Buffalo Open Xdmod: before 8.0.0 (fixed in 8.0.0)

Published 2019-05-02. Last modified 2026-06-17.