CVE-2023-5461: A vulnerability was found in Delta Electronics WPLSoft 2.51

Routine

LOW 3.7REMOTEDOWNGRADE

CVE-2023-5461 is a low-severity flaw (CVSS 3.7) affecting wplsoft. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Delta Electronics WPLSoft 2.51. It has been classified as problematic. Affected is an unknown function of the component Modbus Handler. The manipulation leads to cleartext transmission of sensitive information. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The identifier

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	3.7 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-319
Published	2023-10-09
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: deltaww

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

Am I affected?

Timeline

2023-10-09 20:15 UTCPublished CVE record published
2026-06-17 06:48 UTCUpdated Record last modified

deltaww wplsoft DOWNGRADE

Affected: 2.51

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.51

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.51 (Debian / Ubuntu)

apt-cache madison wplsoft sudo apt install wplsoft=<VERSION_BEFORE_2.51> sudo apt-mark hold wplsoft

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

dnf --showduplicates list wplsoft sudo dnf downgrade wplsoft-<VERSION_BEFORE_2.51> sudo dnf versionlock add wplsoft

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-2023-5461?

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

Is CVE-2023-5461 being exploited?

CVE-2023-5461 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-2023-5461 affect?

CVE-2023-5461 affects wplsoft. Severity is low (CVSS 3.7). A vulnerability was found in Delta Electronics WPLSoft 2.51. It has been classified as problematic. Affected is an unknown function of the component Modbus Handler. The manipulation leads to cleartext transmission of sensitive information.

How urgent is CVE-2023-5461?

Priority 28/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-5460 LOW 3.5 UPGRADE A vulnerability was found in Delta Electronics WPLSoft up to 2.51 and classified as problematic
CVE-2023-5130 HIGH 8.2 DOWNGRADE A buffer overflow vulnerability exists in Delta Electronics WPLSoft

References

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