CVE-2018-16988

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 5.0 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/grymer/CVE/blob/master/CVE-2018-16988.md	Third Party Advisory
https://github.com/grymer/CVE/blob/master/CVE-2018-16988.md	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:*

History

08 Jun 2026, 15:05

Type	Values Removed	Values Added
First Time		Buffalo open Xdmod Buffalo
CPE	cpe:2.3:a:xdmod:open_xdmod:::::::: cpe:2.3:a:xdmod:open_xdmod:7.5.0:rc2:::::: cpe:2.3:a:xdmod:open_xdmod:7.5.0:rc1:::::: cpe:2.3:a:xdmod:open_xdmod:7.5.0:-::::::	cpe:2.3:a:buffalo:open_xdmod::::::::

21 Nov 2024, 03:53

Type	Values Removed	Values Added
References	~~() https://github.com/grymer/CVE/blob/master/CVE-2018-16988.md - Third Party Advisory~~	() https://github.com/grymer/CVE/blob/master/CVE-2018-16988.md - Third Party Advisory

Information

Published : 2019-05-02 20:29

Updated : 2026-06-17 01:45

NVD link : CVE-2018-16988

Mitre link : CVE-2018-16988

CVE.ORG link : CVE-2018-16988

JSON object : View

Products Affected

buffalo

open_xdmod

CWE

CWE-640

Weak Password Recovery Mechanism for Forgotten Password

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