CVE-2025-3400: A vulnerability, which was classified as critical, was found in ESAFENET CDG 5.6.3.154.205_20250114

This week

HIGH 7.3REMOTEDOWNGRADE

CVE-2025-3400 is a high-severity flaw (CVSS 7.3) affecting cdg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, was found in ESAFENET CDG 5.6.3.154.205_20250114. This affects an unknown part of the file /client/UnChkMailApplication.jsp. The manipulation of the argument typename leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-74, CWE-89
Published	2025-04-08
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: esafenet

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

Am I affected?

Timeline

2025-04-08 02:15 UTCPublished CVE record published
2026-06-17 09:19 UTCUpdated Record last modified

esafenet cdg DOWNGRADE

Affected: 5.6.3.154.205_20250114

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.6.3.154.205_20250114

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.6.3.154.205_20250114 (Debian / Ubuntu)

apt-cache madison cdg sudo apt install cdg=<VERSION_BEFORE_5.6.3.154.205_20250114> sudo apt-mark hold cdg

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

dnf --showduplicates list cdg sudo dnf downgrade cdg-<VERSION_BEFORE_5.6.3.154.205_20250114> sudo dnf versionlock add cdg

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-2025-3400?

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

Is CVE-2025-3400 being exploited?

CVE-2025-3400 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-2025-3400 affect?

CVE-2025-3400 affects cdg. Severity is high (CVSS 7.3). A vulnerability, which was classified as critical, was found in ESAFENET CDG 5.6.3.154.205_20250114. This affects an unknown part of the file /client/UnChkMailApplication.jsp. The manipulation of the argument typename leads to sql injection

How urgent is CVE-2025-3400?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-3401 HIGH 7.3 DOWNGRADE A vulnerability has been found in ESAFENET CDG 5.6.3.154.205_20250114 and classified as critical
CVE-2025-3399 HIGH 7.3 DOWNGRADE A vulnerability, which was classified as critical, has been found in ESAFENET CDG 5.6.3.154.205_20250114
CVE-2025-2927 HIGH 7.3 DOWNGRADE A vulnerability was found in ESAFENET CDG 5.6.3.154.205
CVE-2025-1844 MEDIUM 6.3 DOWNGRADE A vulnerability, which was classified as critical, was found in ESAFENET CDG 5.6.3.154.205_20250114
CVE-2025-1841 HIGH 7.3 DOWNGRADE A vulnerability classified as critical has been found in ESAFENET CDG 5.6.3.154.205

References

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