How severe is CVE-2026-33616?

CVE-2026-33616 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-33616 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33616?

CVE-2026-33616 primarily affects Mbconnectline Mbconnect24. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-33616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33616 have an EU (EUVD) identifier?

Yes. CVE-2026-33616 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18178.

When was CVE-2026-33616 published?

CVE-2026-33616 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-33616

CVE-2026-33616 is a high-severity vulnerability in Mbconnectline Mbconnect24 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18178
Weakness: CWE-89
Affected product: Mbconnectline Mbconnect24
Published: 2026-04-02
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-33616?: 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.
How severe is CVE-2026-33616?: CVE-2026-33616 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-33616 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33616?: CVE-2026-33616 primarily affects Mbconnectline Mbconnect24. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-33616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33616 have an EU (EUVD) identifier?: Yes. CVE-2026-33616 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18178.
When was CVE-2026-33616 published?: CVE-2026-33616 was published on 2026-04-02 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:mbconnectline:mbconnect24:*:*:*:*:*:*:*:*
cpe:2.3:a:mbconnectline:mymbconnect24:*:*:*:*:*:*:*:*

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