Auth bypass in Schneider-Electric Powerlogic Pm5560
CVE-2021-22764
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.
Vulnerability class: Broken Authentication
EPSS: 0.019 (77.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Schneider-electric Powerlogic_pm5560
- Schneider-electric Powerlogic_pm5560_firmware
- Schneider-electric Powerlogic_pm5561
- Schneider-electric Powerlogic_pm5561_firmware
- Schneider-electric Powerlogic_pm5562
- Schneider-electric Powerlogic_pm5562_firmware
- Schneider-electric Powerlogic_pm5563
- Schneider-electric Powerlogic_pm5563_firmware
- N/a Powerlogic Pm55xx, Egx100, And Egx300 (See Security Notification For Version Infromation) — versions PowerLogic PM55xx, PowerLogic EGX100, and PowerLogic EGX300 (see security notification for version infromation)
Weakness classification (CWE)
References
- cybersecurity@se.com (x_refsource_MISC)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-22764?
- CVE-2021-22764 is a medium-severity vulnerability in Schneider-Electric Powerlogic Pm5560, classified under Improper Authentication. CVSS score: 5.3/10. Published 2021-06-11.
- How severe is CVE-2021-22764?
- Medium severity. CVSS v3 base score is 5.3 out of 10.