View CSAF
1. EXECUTIVE SUMMARY
CVSS v4 10.0
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Voltronic Power, PowerShield
Equipment: Viewpower, NetGuard
Vulnerabilities: Exposed Dangerous Method or Function, Forced Browsing
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an unauthenticated attacker remotely to make configuration changes, resulting in shutting down UPS connected devices or execution of arbitrary code.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Voltronic Power and PowerShield UPS monitoring software is affected, as well as other derivative products:
Voltronic Power Viewpower: Version 1.04-24215 and prior
Voltronic Power ViewPower Pro: Version 2.2165 and prior
Powershield NetGuard: Version 1.04-22119 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 EXPOSED DANGEROUS METHOD OR FUNCTION CWE-749
The UPS management software normally allows a properly authenticated and authorized user using a web interface to configure the system to run a single OS command of the users choosing when the software detects a managed UPS is shutting down. A related critical underlying function is exposed over the network with no authentication or authorization allowing an attacker to use this to run arbitrary code immediately regardless of any managed UPS state or presence.
CVE-2022-31491 has been assigned to this vulnerability. A CVSS v3.1 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2022-31491. A base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).
3.2.2 DIRECT REQUEST (‘FORCED BROWSING’) CWE-425
The UPS management software is supposed to only allow a properly authenticated and authorized admin user using a web interface to configure the system. An unauthenticated remote attacker can make changes to the system including: changing the web interface admin password, view/change system configuration, enumerate connected UPS devices and shut down connected UPS devices.
CVE-2021-43110 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2021-43110. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
3.3 BACKGROUND
CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical Manufacturing, Energy
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Voltronic Power – Taiwan, Powershield – Australia
3.4 RESEARCHER
An anonymous researcher reported these vulnerabilities to CISA.
4. MITIGATIONS
Voltronic Power has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of these affected products are invited to contact Voltronic Power customer support for additional information.
Powershield is aware of the issue and has provided a fix in NetGuard versions 1.04-23292 and later. For more information, refer to Powershield’s software page. Users can also contact Powershield via email or phone: +618 9209 3839.
CISA recommends users take defensive measures to minimize the risk of exploitation of this these vulnerabilities, such as:
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting this these vulnerabilities has been reported to CISA at this time.
5. UPDATE HISTORY
July 1, 2025: Initial Publication
View CSAF
1. EXECUTIVE SUMMARY
- CVSS v4 10.0
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Voltronic Power, PowerShield
- Equipment: Viewpower, NetGuard
- Vulnerabilities: Exposed Dangerous Method or Function, Forced Browsing
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an unauthenticated attacker remotely to make configuration changes, resulting in shutting down UPS connected devices or execution of arbitrary code.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Voltronic Power and PowerShield UPS monitoring software is affected, as well as other derivative products:
- Voltronic Power Viewpower: Version 1.04-24215 and prior
- Voltronic Power ViewPower Pro: Version 2.2165 and prior
- Powershield NetGuard: Version 1.04-22119 and prior
3.2 VULNERABILITY OVERVIEW
The UPS management software normally allows a properly authenticated and authorized user using a web interface to configure the system to run a single OS command of the users choosing when the software detects a managed UPS is shutting down. A related critical underlying function is exposed over the network with no authentication or authorization allowing an attacker to use this to run arbitrary code immediately regardless of any managed UPS state or presence.
CVE-2022-31491 has been assigned to this vulnerability. A CVSS v3.1 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2022-31491. A base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).
The UPS management software is supposed to only allow a properly authenticated and authorized admin user using a web interface to configure the system. An unauthenticated remote attacker can make changes to the system including: changing the web interface admin password, view/change system configuration, enumerate connected UPS devices and shut down connected UPS devices.
CVE-2021-43110 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2021-43110. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
3.3 BACKGROUND
- CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical Manufacturing, Energy
- COUNTRIES/AREAS DEPLOYED: Worldwide
- COMPANY HEADQUARTERS LOCATION: Voltronic Power – Taiwan, Powershield – Australia
3.4 RESEARCHER
An anonymous researcher reported these vulnerabilities to CISA.
4. MITIGATIONS
Voltronic Power has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of these affected products are invited to contact Voltronic Power customer support for additional information.
Powershield is aware of the issue and has provided a fix in NetGuard versions 1.04-23292 and later. For more information, refer to Powershield’s software page. Users can also contact Powershield via email or phone: +618 9209 3839.
CISA recommends users take defensive measures to minimize the risk of exploitation of this these vulnerabilities, such as:
- Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
- Locate control system networks and remote devices behind firewalls and isolating them from business networks.
- When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
No known public exploitation specifically targeting this these vulnerabilities has been reported to CISA at this time.
5. UPDATE HISTORY
- July 1, 2025: Initial Publication
