CVE-2023-51711: An issue was discovered in Regify Regipay Client for Windows version 4.5.1.0 allows DLL hijacking: a user can

Routine

HIGH 7.8DOWNGRADE

CVE-2023-51711 is a high-severity flaw (CVSS 7.8) affecting regipay. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Regify Regipay Client for Windows version 4.5.1.0 allows DLL hijacking: a user can trigger the execution of arbitrary code every time the product is executed.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-427
Published	2024-01-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: regify

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

Am I affected?

Timeline

2024-01-24 07:15 UTCPublished CVE record published
2026-06-17 06:41 UTCUpdated Record last modified

regify regipay DOWNGRADE

Affected: 4.5.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.5.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.5.1.0 (Debian / Ubuntu)

apt-cache madison regipay sudo apt install regipay=<VERSION_BEFORE_4.5.1.0> sudo apt-mark hold regipay

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

dnf --showduplicates list regipay sudo dnf downgrade regipay-<VERSION_BEFORE_4.5.1.0> sudo dnf versionlock add regipay

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-2023-51711?

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

Is CVE-2023-51711 being exploited?

CVE-2023-51711 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-2023-51711 affect?

CVE-2023-51711 affects regipay. Severity is high (CVSS 7.8). An issue was discovered in Regify Regipay Client for Windows version 4.5.1.0 allows DLL hijacking: a user can trigger the execution of arbitrary code every time the product is executed.

How urgent is CVE-2023-51711?

Priority 30/100. High severity

Software pages

Windows vulnerabilities

References

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