CVE-2025-56819: An issue in Datart v.1.0.0-rc.3 allows a remote attacker to execute arbitrary code via the INIT connection par

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2025-56819 is a critical-severity flaw (CVSS 9.8) affecting datart. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Datart v.1.0.0-rc.3 allows a remote attacker to execute arbitrary code via the INIT connection parameter.

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-09-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: running-elephant

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

Am I affected?

Timeline

2025-09-24 16:15 UTCPublished CVE record published
2026-06-17 09:42 UTCUpdated Record last modified

running-elephant datart DOWNGRADE

Affected: 1.0.0 rc3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison datart sudo apt install datart=<VERSION_BEFORE_1.0.0> sudo apt-mark hold datart

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

dnf --showduplicates list datart sudo dnf downgrade datart-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add datart

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · wordpress · FIXED · 7.1.4-1.fc46 · FEDORA-2026-907394725e · source

sudo dnf upgrade --advisory=FEDORA-2026-907394725e

Fedora ELN · rhc · FIXED · 0.3.15-1.eln159 · FEDORA-2026-1cd9f35750 · source

sudo dnf upgrade --advisory=FEDORA-2026-1cd9f35750

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: xyyzxc/CVE-2025-56819 (2 stars)
Nuclei scan template: Datart v1.0.0-rc.3 - Remote Code Execution

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-2025-56819?

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

Is CVE-2025-56819 being exploited?

CVE-2025-56819 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-2025-56819 affect?

CVE-2025-56819 affects datart. Severity is critical (CVSS 9.8). An issue in Datart v.1.0.0-rc.3 allows a remote attacker to execute arbitrary code via the INIT connection parameter.

How urgent is CVE-2025-56819?

Priority 64/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

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References

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