CVE-2024-45273 | MB connect line/Helmholz: Weak encryption of configuration file

An unauthenticated local attacker can decrypt the devices config file and therefore compromise the device due to a weak implementation of the encryption used.

Published: 2024-10-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-45273 is rated Moderate Risk (41.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.07%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-45273

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-23 0.04% 0.07% +0.03%
2 2024-10-18 0.05% 0.04% -0.01%
3 2024-10-16 — 0.05% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-45273

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.4 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.5 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2024-45273

Affected software / configurations for CVE-2024-45273

Vendor Product Version Raw CPE
mbconnectline mbnet.mini_firmware < 2.3.1 cpe:2.3:o:mbconnectline:mbnet.mini_firmware:*:*:*:*:*:*:*:*
helmholz myrex24_v2_virtual_server < 2.16.3 cpe:2.3:a:helmholz:myrex24_v2_virtual_server:*:*:*:*:*:*:*:*
helmholz rex_300_firmware <= 5.1.11 cpe:2.3:o:helmholz:rex_300_firmware:*:*:*:*:*:*:*:*
helmholz rex_200_firmware < 8.2.1 cpe:2.3:o:helmholz:rex_200_firmware:*:*:*:*:*:*:*:*
helmholz rex_250_firmware < 8.2.1 cpe:2.3:o:helmholz:rex_250_firmware:*:*:*:*:*:*:*:*
helmholz rex_100_firmware < 2.3.1 cpe:2.3:o:helmholz:rex_100_firmware:*:*:*:*:*:*:*:*
mbconnectline mbconnect24 < 2.16.3 cpe:2.3:a:mbconnectline:mbconnect24:*:*:*:*:*:*:*:*
mbconnectline mymbconnect24 < 2.16.3 cpe:2.3:a:mbconnectline:mymbconnect24:*:*:*:*:*:*:*:*
mbconnectline mbspider_mdh_905_firmware <= 2.6.5 cpe:2.3:o:mbconnectline:mbspider_mdh_905_firmware:*:*:*:*:*:*:*:*
mbconnectline mbspider_mdh_915_firmware <= 2.6.5 cpe:2.3:o:mbconnectline:mbspider_mdh_915_firmware:*:*:*:*:*:*:*:*
mbconnectline mbspider_mdh_906_firmware <= 2.6.5 cpe:2.3:o:mbconnectline:mbspider_mdh_906_firmware:*:*:*:*:*:*:*:*
mbconnectline mbspider_mdh_916_firmware <= 2.6.5 cpe:2.3:o:mbconnectline:mbspider_mdh_916_firmware:*:*:*:*:*:*:*:*
mbconnectline mbnet_hw1_firmware <= 5.1.11 cpe:2.3:o:mbconnectline:mbnet_hw1_firmware:*:*:*:*:*:*:*:*
mbconnectline mbnet_firmware < 8.2.1 cpe:2.3:o:mbconnectline:mbnet_firmware:*:*:*:*:*:*:*:*
mbconnectline mbnet.rokey_firmware < 8.2.1 cpe:2.3:o:mbconnectline:mbnet.rokey_firmware:*:*:*:*:*:*:*:*

References for CVE-2024-45273

cvelogic Threat Intelligence