Hitachi Energy e-mesh EMS

Risk Summary

Hitachi Energy is aware of a buffer overflow vulnerability that affects e-mesh EMS product versions listed in this document. Successful exploitation of this vulnerability could lead to a buffer overflow condition, potentially resulting in application outages (denial of service) and possible arbitrary code execution. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation.

CVEs (1)

Remediations

• Apply hotfix for respective e-mesh EMS versions to update NGINX to either v1.30.2 or latest
• Ensure rewrite configuration does not contain "?" to replace unnamed captures, and ensure ASLR is set to active (value=2) across all deployment targets covering all 3 versions.
• Underlying Ubuntu Server 20.04 LTS is End of Life. For e-mesh EMS versions 4.1.6/4.4.2 using Ubuntu 20.04 LTS, upgrade to Ubuntu Server 22.04, or 24.04, or activate Ubuntu Pro/ESM as an interim measure.

Affected Vendors

Affected Products (3)

Affected Sectors

Energy