CVE-2026-33616: An unauthenticated remote attacker can exploit an unauthenticated blind SQL Injection vulnerability in the mb2

Q: How do I fix CVE-2026-33616?

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-2026-33616 being exploited?

CVE-2026-33616 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-2026-33616 affect?

CVE-2026-33616 affects mbconnect24, mymbconnect24. Severity is high (CVSS 7.5). An unauthenticated remote attacker can exploit an unauthenticated blind SQL Injection vulnerability in the mb24api endpoint due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confi

Q: How urgent is CVE-2026-33616?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2026-33616 is a high-severity flaw (CVSS 7.5) 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 exploit an unauthenticated blind SQL Injection vulnerability in the mb24api endpoint due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-04-02
Last modified	2026-10-25

Publisher (CNA): CERT VDE · Vendor: mbconnectline

Last updated 2026-10-25 · 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
2026-10-25 23:10 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-2026-33616?

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-2026-33616 being exploited?

CVE-2026-33616 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-2026-33616 affect?

CVE-2026-33616 affects mbconnect24, mymbconnect24. Severity is high (CVSS 7.5). An unauthenticated remote attacker can exploit an unauthenticated blind SQL Injection vulnerability in the mb24api endpoint due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confi

How urgent is CVE-2026-33616?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

References

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