CVE-2021-22764

CVE-2021-22764

Vendor N/A

Product PowerLogic PM55xx, PowerLogic EGX100, and PowerLogic EGX300 (see security notification for version infromation)

Weakness CWE-287 · Improper authentication

Published June 11, 2021

Last update May 29, 2026

View on NVD All CVEs

CVSS base score

—

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 11, 2021 CVE published

May 29, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-22764 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/287.html

Related vulnerabilities

Identifiers

CVE CVE-2021-22764

CWE CWE-287

Affected versions

Vendor N/A

Product PowerLogic PM55xx, PowerLogic EGX100, and PowerLogic EGX300 (see security notification for version infromation)

Affected PowerLogic PM55xx, PowerLogic EGX100, and PowerLogic EGX300 (see security notification for version i

01Description

02Disclosure timeline

03References

04Related CVE