How severe is CVE-2020-35566?

CVE-2020-35566 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-2020-35566 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35566?

CVE-2020-35566 primarily affects Mbconnectline Mbconnect24. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-35566?

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

When was CVE-2020-35566 published?

CVE-2020-35566 was published on 2021-02-16 and last updated on 2026-06-17.

CVE-2020-35566

CVE-2020-35566 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-706.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-706
Affected product: Mbconnectline Mbconnect24
Published: 2021-02-16
Last modified: 2026-06-17

Description

An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2. An attacker can read arbitrary JSON files via Local File Inclusion.

Frequently asked questions

What is CVE-2020-35566?: An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2. An attacker can read arbitrary JSON files via Local File Inclusion.
How severe is CVE-2020-35566?: CVE-2020-35566 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-2020-35566 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35566?: CVE-2020-35566 primarily affects Mbconnectline Mbconnect24. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-35566?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-35566 published?: CVE-2020-35566 was published on 2021-02-16 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:mbconnectline:mbconnect24:*:*:*:*:*:*:*:*
cpe:2.3:a:mbconnectline:mymbconnect24:*:*:*:*:*:*:*:*
cpe:2.3:a:helmholz:myrex24:*:*:*:*:*:*:*:*
cpe:2.3:a:helmholz:myrex24.virtual:*:*:*:*:*:*:*:*

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…
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