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CVE Record

CVE-2018-1281: The clustered setup of Apache MXNet allows users to specify which IP address and port the scheduler will li...

The clustered setup of Apache MXNet allows users to specify which IP address and port the scheduler will listen on via the DMLC_PS_ROOT_URI and DMLC_PS_ROOT_PORT env variables. In versions older than 1.0.0, however, the MXNet framework will listen on 0.0.0.0 rather than user specified DMLC_PS_ROOT_URI once a scheduler node is initialized. This exposes the instance running MXNet to any attackers reachable via the interface they didn't expect to be listening on. For example: If a user wants to run a clustered setup locally, they may specify to run on 127.0.0.1. But since MXNet will listen on 0.0.0.0, it makes the port accessible on all network interfaces.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Older Apache MXNet clustered deployments may expose a scheduler service on all network interfaces, even when operators configured it for a specific IP such as localhost. This can unintentionally make the service reachable from networks the business did not intend to trust.

Executive priority

Treat this as a configuration-exposure risk for legacy ML infrastructure. Prioritize internet-facing, cloud, or shared-network clusters first; isolated lab systems are lower urgency if network access is tightly controlled.

Technical view

In Apache MXNet versions older than 1.0.0, the clustered scheduler ignores the configured DMLC_PS_ROOT_URI after initialization and listens on 0.0.0.0. Exposure depends on network reachability to the configured DMLC_PS_ROOT_PORT and surrounding firewall or segmentation controls.

Likely exposure

Organizations are mainly exposed if they ran Apache MXNet clusters before 1.0.0, especially on shared servers, cloud hosts, or systems where localhost-only binding was assumed.

Exploitation context

The source bundle does not show KEV listing, active exploitation, CVSS, CWE, or exploit details. Practical risk depends on whether an attacker can reach the unintended listening interface and port.

Researcher notes

The public evidence identifies Apache MXNet versions older than 1.0.0 and references a ps-lite commit. The bundle lacks impact beyond unintended network exposure, so avoid assuming authentication bypass, code execution, or data compromise.

Mitigation direction

  • Upgrade Apache MXNet deployments older than 1.0.0 where feasible.
  • Restrict scheduler ports with host firewalls or cloud security groups.
  • Avoid assuming DMLC_PS_ROOT_URI alone limits network exposure on affected versions.
  • Check current Apache MXNet vendor guidance before operational changes.

Validation and detection

  • Inventory Apache MXNet clustered deployments and record deployed versions.
  • Identify hosts using DMLC_PS_ROOT_URI and DMLC_PS_ROOT_PORT.
  • Confirm whether scheduler services bind beyond the intended interface.
  • Review firewall, security group, and segmentation rules for scheduler reachability.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache MXNetversions older than 1.0.0Listed
Weakness

CWE details

No CWE listed

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