CVE-2012-3012: The Arbiter Power Sentinel 1133A device with firmware before 11Jun2012 Rev 421 allows remote attackers to c...

Security readout for executives and security teams

CVE-2012-3012 can make an Arbiter Power Sentinel 1133A lose Ethernet connectivity when it receives certain traffic. For organizations using this device in power or industrial monitoring, the business concern is loss of visibility or communications, not data theft. The provided sources do not show active exploitation. Exposure is likely limited to environments still running Arbiter Power Sentinel 1133A devices with firmware older than 11Jun2012 Rev 421, especially where the device is reachable over Ethernet from broad IT, vendor, or untrusted networks. Prioritize remediation if these devices support operational visibility or power monitoring. The issue is old and not reported as actively exploited here, but unsupported or reachable legacy OT devices can still create avoidable downtime risk. Mitigation focus: Inventory Arbiter Power Sentinel 1133A devices and record firmware versions.; Update affected devices to 11Jun2012 Rev 421 or later, following vendor guidance.; Restrict Ethernet access to trusted management and monitoring networks..

Prepared

Jun 28, 2026, 00:52 UTC (UTC+00:00)

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