A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.

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Vendors Products
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Advisories
Source ID Title
EUVD EUVD EUVD-2021-9899 A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 29 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 24 Nov 2024 14:45:00 +0000


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: schneider

Published:

Updated: 2026-05-29T13:42:44.974Z

Reserved: 2021-01-06T00:00:00.000Z

Link: CVE-2021-22764

cve-icon Vulnrichment

Updated: 2024-08-03T18:51:07.316Z

cve-icon NVD

Status : Modified

Published: 2021-06-11T16:15:10.390

Modified: 2026-05-29T14:16:23.283

Link: CVE-2021-22764

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses