Open XDMoD Vulnerable to Unauthenticated Remote Code Execution (RCE) via OS Command Injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
OpenXDMoD is an open framework for collecting and analyzing HPC metrics. Starting in version 9.5.0 and prior to version 11.0.3, an attacker can remotely execute arbitrary system commands on the web server hosting Open XDMoD with the privileges of the web server process. This could allow an attacker to read or modify application data, alter system configuration, or disrupt service availability. All deployments of Open XDMoD versions 9.5.0 through 11.0.2 (inclusive) are impacted. This issue was reported privately on 2026-04-06, and at this time there is no evidence that this vulnerability has been exploited in the wild. The vulnerability was patched in Open XDMoD 11.0.3 on 2026-05-12. As a workaround, apply the patch manually.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| BUFFALO INC. | xdmod | 9.5.0 to before 11.0.3 | 11.0.3 | Patch available | CNA |
- xdmod VendorBUFFALO INC. Affected 9.5.0 to before 11.0.3 Fixed in 11.0.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:* | 9.5.0 to before 11.0.3 | Vulnerable | BUFFALO INC. |
- cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:* Versions 9.5.0 to before 11.0.3 Vulnerable ·BUFFALO INC.
Remediation
- Fix · CNA xdmod (ubccr) Fixed in 11.0.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45777
- 2026-10-25 EPSS moved to the below the 50th percentile
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-2018-12139 An issue was discovered in Open XDMoD through 7.5.0. CVSS 3.1CRITICAL 9.8
- 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
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences