An issue was discovered in Open XDMoD through 7.5.0.
Priority MEDIUM 45CWE-640Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-640.
Summary
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.
Why it matters now
EPSS 0.01648 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:* | before 8.0.0 | Vulnerable | BUFFALO INC. |
- cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:* Versions before 8.0.0 Vulnerable ·BUFFALO INC.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16988
- 2026-10-03 Alias added: GHSA-42xw-2v8p-rrf7
References
More BUFFALO INC. Open Xdmod vulnerabilities
- TI-2026-33516 Open XDMoD Vulnerable to Unauthenticated SQL Injection Leading to Full Database Compromise CVSS 4.0CRITICAL 9.3
- TI-2026-33514 Open XDMoD Vulnerable to Unauthenticated Remote Code Execution (RCE) via OS Command Injection CVSS 4.0CRITICAL 9.3
- TI-2018-12116 An issue was discovered in Open XDMoD through 7.5.0. CVSS 3.0HIGH 7.5
- TI-2026-33515 Open XDMoD Vulnerable to Reflected Cross-Site Scripting (XSS) in Password Reset CVSS 4.0HIGH 8.6
- TI-2018-12115 An issue was discovered in Open XDMoD through 7.5.0. CVSS 3.0MEDIUM 6.1
- TI-2026-33513 Open XDMoD has Broken Access Control via Client-Controlled Session Variable CVSS 4.0MEDIUM 5.3
Sources
- CVE-2018-16988 · CVE Program
- CVE-2018-16988 · NVD
- FIRST EPSS
- GHSA-42xw-2v8p-rrf7 · GitHub Advisory Database · CC BY 4.0
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