# CVE-2026-14167: ads-tec Industrial IT IRF Products incorrect authorization in Web UI

Source: https://junglewise.ai/threats/cve-2026-14167-ads-tec-industrial-it-irf-products-incorrect-authorization-in-web  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-28. Updated: 2026-07-28  
License: CC BY 4.0 with a link back

CVE-2026-14167 · Severity: high · CVSS 8.8 · Published 2026-07-28

ADS-TEC Industrial IT firewalls and routers are affected by a security flaw that allows a user with low-level access to perform administrative tasks. An attacker could change critical device settings or modify user permissions, potentially leading to a full takeover of the network hardware. This could result in unauthorized network access, data interception, or service disruptions.

Technologies: [ads-tec Industrial IT DVG-IRF1401](https://junglewise.ai/threats/technologies/dvg-irf1401), [ads-tec Industrial IT DVG-IRF1421](https://junglewise.ai/threats/technologies/dvg-irf1421), [ads-tec Industrial IT DVG-IRF3401](https://junglewise.ai/threats/technologies/dvg-irf3401), [ads-tec Industrial IT DVG-IRF3421](https://junglewise.ai/threats/technologies/dvg-irf3421), [ads-tec Industrial IT DVG-IRF3801](https://junglewise.ai/threats/technologies/dvg-irf3801), [ads-tec Industrial IT DVG-IRF3821](https://junglewise.ai/threats/technologies/dvg-irf3821). Vendors: [ads-tec Industrial IT](https://junglewise.ai/threats/vendors/ads-tec-industrial-it).

## Quick answers

**Is CVE-2026-14167 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-14167 being exploited in the wild.

**How severe is CVE-2026-14167?** High severity, with a CVSS score of 8.8, published 28 July 2026.

**Which products and versions are affected?** ads-tec Industrial IT DVG-IRF1401 1.0.0 to 2.2.9; ads-tec Industrial IT DVG-IRF1421 1.0.0 to 2.2.9; ads-tec Industrial IT DVG-IRF3401 1.0.0 to 2.2.9; ads-tec Industrial IT DVG-IRF3421 1.0.0 to 2.2.9; and 2 more.

**Is there a fix for CVE-2026-14167?** A patch was published on 2026-07-28: Fixed in firmware version 2.3.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-14167 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-14167?** Check whether you run ads-tec Industrial IT DVG-IRF1401, ads-tec Industrial IT DVG-IRF1421, ads-tec Industrial IT DVG-IRF3401 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An incorrect authorization vulnerability (CWE-863) exists in the proprietary configuration interface and web UI of ADS-TEC IRF1000 and IRF3000 series products. A remote attacker with low-privileged credentials can bypass intended access controls to perform administrative configuration changes, including the management of user permissions. This flaw allows for vertical privilege escalation from a standard user to an administrator. The vulnerability is addressed in firmware version 2.3.0.

## Affected products

- ads-tec Industrial IT DVG-IRF1401 (IRF1000) 1.0.0 to 2.2.9
- ads-tec Industrial IT DVG-IRF1421 (IRF1000) 1.0.0 to 2.2.9
- ads-tec Industrial IT DVG-IRF3401 (IRF3000) 1.0.0 to 2.2.9
- ads-tec Industrial IT DVG-IRF3421 (IRF3000) 1.0.0 to 2.2.9
- ads-tec Industrial IT DVG-IRF3801 (IRF3000) 1.0.0 to 2.2.9
- ads-tec Industrial IT DVG-IRF3821 (IRF3000) 1.0.0 to 2.2.9

## Timeline

- 2026-07-28: advisory
- 2026-07-28: patched: Fixed in firmware version 2.3.0

## References

- [https://www.certvde.com/en/advisories/VDE-2026-076/](https://www.certvde.com/en/advisories/VDE-2026-076/)

## Related threats

- [ads-tec Industrial IT IRF Products open redirect in web-UI](https://junglewise.ai/threats/cve-2026-14171-ads-tec-industrial-it-irf-products-open-redirect-in-web-ui)
- [ads-tec Industrial IT IRF series password overwrite via incorrect behavior order](https://junglewise.ai/threats/cve-2026-14169-ads-tec-industrial-it-irf-series-password-overwrite-via-incorrect)
- [ads-tec Industrial IT IRF Products missing authorization in configuration table](https://junglewise.ai/threats/cve-2026-14168-ads-tec-industrial-it-irf-products-missing-authorization-in)