CVE-2023-51587: Voltronic Power ViewPower getModbusPassword Missing Authentication Information Disclosure Vulnerability

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2023-51587 is a high-severity flaw (CVSS 7.5) affecting viewpower. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Voltronic Power ViewPower getModbusPassword Missing Authentication Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Voltronic Power ViewPower. Authentication is not required to exploit this vulnerability. The specific flaw exists within the getModbusPassword method. The issue results from the lack of authentication prior to allowing access to functiona

Why this priority

High severity
EPSS top 2%: very likely to be exploited
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	36.0% (top 2%)
CISA exploited list	No
Weakness	CWE-306
Published	2024-05-03
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: voltronicpower

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-03 03:16 UTCPublished CVE record published
2026-06-17 06:41 UTCUpdated Record last modified

voltronicpower viewpower DOWNGRADE

Affected: 1.04.21353

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.04.21353

1. Check installed version

apt-cache policy viewpower || rpm -q viewpower || viewpower --version

2. No fixed release: DOWNGRADE to a release before 1.04.21353 (Debian / Ubuntu)

apt-cache madison viewpower sudo apt install viewpower=<VERSION_BEFORE_1.04.21353> sudo apt-mark hold viewpower

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list viewpower sudo dnf downgrade viewpower-<VERSION_BEFORE_1.04.21353> sudo dnf versionlock add viewpower

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-51587?

viewpower: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-51587 being exploited?

CVE-2023-51587 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-51587 affect?

CVE-2023-51587 affects viewpower. Severity is high (CVSS 7.5). Voltronic Power ViewPower getModbusPassword Missing Authentication Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Voltronic Power ViewPower. Au

How urgent is CVE-2023-51587?

Priority 56/100. High severity; EPSS top 2%: very likely to be exploited; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-51595 CRITICAL 9.8 DOWNGRADE Voltronic Power ViewPower Pro selectDeviceListBy SQL Injection Remote Code Execution Vulnerability
CVE-2023-51593 CRITICAL 9.8 DOWNGRADE Voltronic Power ViewPower Pro Expression Language Injection Remote Code Execution Vulnerability
CVE-2023-51591 HIGH 7.5 DOWNGRADE Voltronic Power ViewPower Pro doDocument XML External Entity Processing Information Disclosure Vulnerability
CVE-2023-51590 CRITICAL 9.8 DOWNGRADE Voltronic Power ViewPower Pro UpLoadAction Unrestricted File Upload Remote Code Execution Vulnerability
CVE-2023-51588 HIGH 7.8 DOWNGRADE Voltronic Power ViewPower Pro MySQL Use of Hard-coded Credentials Local Privilege Escalation Vulnerability

References

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