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Authenticated SQL injection in getVpnData function

CVE-2026-40820EUVD-2026-124328GHSA-HHM3-8QG5-W88F

6.9MediumCNA
Exploited
No known exploitation
Fix
No fix listed
Who is exposed
Not reported
Published
Last modified
Reference
Last checked
0.29% · 22nd percentile
15/100 · provisional
None on Exploit-DB, Metasploit or GitHub

Summary

The getVpnData function in the MB connect line mbCONNECT24 and mymbCONNECT24 products, and the Helmholz myREX24V2 and myREX24V2.virtual products, has an SQL injection flaw. A remote attacker with high-level privileges can reach it over the network and use it to read database data, causing a total loss of confidentiality.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

A high privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getVpnData function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

cve.now Index

15Pcve.now Index 15 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure3/25Reachable over the network · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity6.9/10CVSS 6.9
  • No patch5/5No patch listed yet

What would change the score

  • Would score about 70 if added to CISA KEV
  • Would score about 65 if CISA's SSVC rates exploitation active
  • Would score about 34 if advisories confirm default setups are exposed

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-40820 (Authenticated SQLi in getVpnData function), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-40820 (entry last updated 2026-11-12):
Affected:
- MB connect line mbCONNECT24: from 1.0.0, through 2.20.0
- MB connect line mymbCONNECT24: from 1.0.0, through 2.20.0
- MB connect line mbCONNECT24: versions 2.20.0
- MB connect line mymbCONNECT24: versions 2.20.0
- Helmholz myREX24V2: from 1.0.0, through 2.20.0
- Helmholz myREX24V2.virtual: from 1.0.0, through 2.20.0
- Helmholz myREX24V2: versions 2.20.0
- Helmholz myREX24V2.virtual: versions 2.20.0
Fixed versions: none listed yet.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-40820 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-40820 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://www.certvde.com/en/advisories/VDE-2026-044/
- https://www.certvde.com/en/advisories/VDE-2026-058/
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-40820
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-40820"}.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • MB connect line mbCONNECT24

    From 1.0.0 · through 2.20.0

  • MB connect line mymbCONNECT24

    From 1.0.0 · through 2.20.0

  • MB connect line mbCONNECT24

    2.20.0

  • MB connect line mymbCONNECT24

    2.20.0

  • Helmholz myREX24V2

    From 1.0.0 · through 2.20.0

  • Helmholz myREX24V2.virtual

    From 1.0.0 · through 2.20.0

  • Helmholz myREX24V2

    2.20.0

  • Helmholz myREX24V2.virtual

    2.20.0

Evidence 4

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Other links · 2

  1. Link
  2. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-40820

Is CVE-2026-40820 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-40820?

mbCONNECT24: from 1.0.0 through 2.20.0. mymbCONNECT24: from 1.0.0 through 2.20.0. mbCONNECT24: version 2.20.0. mymbCONNECT24: version 2.20.0. myREX24V2: from 1.0.0 through 2.20.0. 3 more packages are listed on the page.Source: cve.now feed data