How severe is CVE-2026-33617?

CVE-2026-33617 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-33617 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33617?

CVE-2026-33617 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-2026-33617?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-33617 have an EU (EUVD) identifier?

Yes. CVE-2026-33617 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18180.

When was CVE-2026-33617 published?

CVE-2026-33617 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-33617

CVE-2026-33617 is a medium-severity vulnerability in Mbconnectline Mbconnect24 with a CVSS 3.x base score of 5.3. 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-497.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18180
Weakness: CWE-497
Affected product: Mbconnectline Mbconnect24
Published: 2026-04-02
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-33617?: 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 severe is CVE-2026-33617?: CVE-2026-33617 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-33617 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33617?: CVE-2026-33617 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-2026-33617?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33617 have an EU (EUVD) identifier?: Yes. CVE-2026-33617 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18180.
When was CVE-2026-33617 published?: CVE-2026-33617 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:*:*:*:*:*:*:*:*

More vulnerabilities in Mbconnectline Mbconnect24

CVE-2020-35565 — Critical (CVSS 9.8): An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. The login pages bruteforce…
CVE-2020-10383 — Critical (CVSS 9.8): An issue was discovered in the MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 software in all versions through 2.5.0.…
CVE-2026-33615 — Critical (CVSS 9.1): An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the setinfo endpoint…
CVE-2023-0985 — High (CVSS 8.8): An Authorization Bypass vulnerability was found in MB Connect Lines mbCONNECT24, mymbCONNECT24 and Helmholz' myREX24…
CVE-2020-10382 — High (CVSS 8.8): An issue was discovered in the MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 software in all versions through 2.5.0.…
CVE-2024-45273 — High (CVSS 8.4): An unauthenticated local attacker can decrypt the devices config file and therefore compromise the device due to a weak…

All CVEs affecting Mbconnectline Mbconnect24 →

Other CWE-497 vulnerabilities

CVE-2025-10264 — Critical (CVSS 10.0): Certain models of NVR developed by Digiever has an Exposure of Sensitive Information vulnerability, allowing…
CVE-2026-27494 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated…
CVE-2025-47699 — Critical (CVSS 9.9): Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497) in the Gallagher Morpho…
CVE-2025-44823 — Critical (CVSS 9.9): Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext administrative API keys via a…
CVE-2026-14808 — Critical (CVSS 9.8): Prog Management System developed by PROG MIS has a Exposure of Sensitive Information vulnerability, allowing…
CVE-2024-13999 — Critical (CVSS 9.8): Nagios XI versions prior to 2024R1.1.3, under certain circumstances, disclose the server's Active Directory (AD) or…

Browse all CWE-497 vulnerabilities →