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CVE-2026-45777

Buffalo Open Xdmod command injection

9.8 CRITICALEPSS 0.70%
  1. Published5 Jun 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Buffalo Open Xdmod≥ 9.5.0 < 11.0.3

Remediation

Fixed in
Buffalo Open Xdmod≥ 11.0.3

References

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Frequently asked

Is CVE-2026-45777 being actively exploited?

CVE-2026-45777 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.70%.

How severe is CVE-2026-45777?

CVE-2026-45777 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.70% probability of exploitation.

Which products are affected by CVE-2026-45777?

Affected products include Buffalo Open Xdmod.

How do I fix CVE-2026-45777?

Upgrade affected software to a fixed version, for example Buffalo Open Xdmod 11.0.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-45777 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.