CVE-2026-33617: An unauthenticated remote attacker can access a configuration file containing database credentials

Q: How do I fix CVE-2026-33617?

mbconnect24: upgrade to newer than 2.19.4; mymbconnect24: upgrade to newer than 2.19.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-33617 being exploited?

CVE-2026-33617 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33617 affect?

CVE-2026-33617 affects mbconnect24, mymbconnect24. Severity is medium (CVSS 5.3). An unauthenticated remote attacker can access a configuration file containing database credentials. This can result in a some loss of confidentiality, but there is no endpoint exposed to use these credentials.

Q: How urgent is CVE-2026-33617?

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

Routine

MEDIUM 5.3REMOTEUPGRADEUPGRADE

CVE-2026-33617 is a medium-severity flaw (CVSS 5.3) affecting mbconnect24, mymbconnect24. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An unauthenticated remote attacker can access a configuration file containing database credentials. This can result in a some loss of confidentiality, but there is no endpoint exposed to use these credentials.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-497
Published	2026-04-02
Last modified	2026-10-26

Publisher (CNA): CERT VDE · Vendor: mbconnectline

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-02 10:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

mbconnectline mbconnect24 UPGRADE

Affected: <= 2.19.4

Fixed in: newer than 2.19.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mbconnect24 || rpm -q mbconnect24 || mbconnect24 --version

2. UPGRADE to newer than 2.19.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mbconnect24

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mbconnect24

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

mbconnectline mymbconnect24 UPGRADE

Affected: <= 2.19.4

Fixed in: newer than 2.19.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mymbconnect24 || rpm -q mymbconnect24 || mymbconnect24 --version

2. UPGRADE to newer than 2.19.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mymbconnect24

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mymbconnect24

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-33617?

mbconnect24: upgrade to newer than 2.19.4; mymbconnect24: upgrade to newer than 2.19.4. Exact commands for each OS are on this page.

Is CVE-2026-33617 being exploited?

CVE-2026-33617 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-2026-33617 affect?

CVE-2026-33617 affects mbconnect24, mymbconnect24. Severity is medium (CVSS 5.3). An unauthenticated remote attacker can access a configuration file containing database credentials. This can result in a some loss of confidentiality, but there is no endpoint exposed to use these credentials.

How urgent is CVE-2026-33617?

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

Related CVEs

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CVE-2026-33613 HIGH 7.2 UPGRADE UPGRADE Due to the improper neutralisation of special elements used in an OS command, a remote attacker can exploit an
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References

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