CVE-2025-56424: An issue in Insiders Technologies GmbH e-invoice pro before release 1 Service Pack 2 allows a remote attacker

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2025-56424 is a high-severity flaw (CVSS 7.5) affecting e-invoice pro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Insiders Technologies GmbH e-invoice pro before release 1 Service Pack 2 allows a remote attacker to cause a denial of service via a crafted script

Why this priority

High severity
Public exploit reference
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	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-01-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: insiders-technologies

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

Am I affected?

Timeline

2026-01-08 17:15 UTCPublished CVE record published
2026-06-17 09:42 UTCUpdated Record last modified

insiders-technologies e-invoice pro DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy e-invoice-pro || rpm -q e-invoice-pro || e-invoice-pro --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison e-invoice-pro sudo apt install e-invoice-pro=<VERSION_BEFORE_1.0> sudo apt-mark hold e-invoice-pro

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

dnf --showduplicates list e-invoice-pro sudo dnf downgrade e-invoice-pro-<VERSION_BEFORE_1.0> sudo dnf versionlock add e-invoice-pro

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-2025-56424?

e-invoice pro: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-56424 being exploited?

CVE-2025-56424 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-2025-56424 affect?

CVE-2025-56424 affects e-invoice pro. Severity is high (CVSS 7.5). An issue in Insiders Technologies GmbH e-invoice pro before release 1 Service Pack 2 allows a remote attacker to cause a denial of service via a crafted script

How urgent is CVE-2025-56424?

Priority 48/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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