CVE-2023-34412 | Stored XXS vulnerability in mbnet, mbnet.rokey, REX 200 and REX 250

A vulnerability in Red Lion Europe mbNET/mbNET.rokey and Helmholz REX 200 and REX 250 devices with firmware lower 7.3.2 allows an authenticated remote attacker with high privileges to inject malicious HTML or JavaScript code (XSS).

Published: 2023-08-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-34412 is rated Low Risk (22.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2023-34412

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 2025-11-21 0.15% 0.04% -0.11%
2 2025-11-18 0.04% 0.15% +0.11%
3 2025-04-15 — 0.04% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34412

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.7 2.7 [email protected]
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.3 2.7 [email protected]

Weakness enumeration for CVE-2023-34412

Affected software / configurations for CVE-2023-34412

Vendor Product Version Raw CPE
helmholz rex_250_firmware < 7.3.2 cpe:2.3:o:helmholz:rex_250_firmware:*:*:*:*:*:*:*:*
helmholz rex_200_firmware < 7.3.2 cpe:2.3:o:helmholz:rex_200_firmware:*:*:*:*:*:*:*:*
redlion mbnet.rokey_rkh_210_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet.rokey_rkh_210_firmware:*:*:*:*:*:*:*:*
redlion mbnet.rokey_rkh_216_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet.rokey_rkh_216_firmware:*:*:*:*:*:*:*:*
redlion mbnet.rokey_rkh_235_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet.rokey_rkh_235_firmware:*:*:*:*:*:*:*:*
redlion mbnet.rokey_rkh_259_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet.rokey_rkh_259_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_811_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_811_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_850_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_850_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_871_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_871_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_831_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_831_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_855_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_855_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_876_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_876_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_858_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_858_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_816_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_816_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_841_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_841_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_859_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_859_firmware:*:*:*:*:*:*:*:*
redlion mbnet_mdh_835_firmware < 7.3.2 cpe:2.3:o:redlion:mbnet_mdh_835_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-34412

cvelogic Threat Intelligence