CVE-2026-10521

highpriority · track · 0EPSS 0.006 · 46 %ileDEEU
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.55% (46th) EPSS
CVSS 7.2 · high
Is it mine?
16 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · helmholz_psirt · mb_connect_line_psirt

EPSS · scored 2026-10-26

An high privileged remote attacker can access a hidden configuration method, that should not be accessible by any user, to modify critical program parameters. This can result in a total loss of confidentiality, integrity and availability.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedmb_connect_line_psirt

    Update the mbCONNECT24/mymbCONNECT24 instance to version 2.20.2.

  • Fixedhelmholz_psirt

    Update the myREX24V2/myREX24V2.virtual instance to version 2.20.2.

02

cvss

Technical severity, 0–10. One row per scoring source.

8.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.1–8.6

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · info@cert.vde.comexploitability 1.2 · impact 5.9
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · Helmholz PSIRT
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · MB connect line PSIRT
v4.08.6highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.08.6highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · info@cert.vde.com
v4.06.1mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-425USCWE-425USCWE-425US
04

affected products (16)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • VDE-2026-068MB connect line: Authenticated unintended access to critical program parameters in mbCONNECT24/mymbCONNECT242026-06-23csaf · mb_connect_line_psirtDE

    There is a vulnerability in mbCONNECT24/mymbCONNECT24 that allows an authenticated remote attacker to access a hidden configuration method, that should not be accessible by any user, to modify critical program parameters.

  • VDE-2026-070Helmholz: Authenticated unintended access to critical program parameters in myREX24V2/myREX24V2.virtual2026-06-23csaf · helmholz_psirtDE

    There is a vulnerability in myREX24V2/myREX24V2.virtual that allows an authenticated remote attacker to access a hidden configuration method, that should not be accessible by any user, to modify critical program parameters.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdhelmholz_psirtmb_connect_line_psirtNVDCVE.orgMITRE
published 2026-06-23modified 2026-06-23
08

references (3)

External citations — patches, advisories, analysis.

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