# CVE-2026-124006: Copeland XWEB EVO predictable credential generation

Source: https://junglewise.ai/threats/cve-2026-124006-xweb-evo-through-5-8-8-contains-a-predictable-credential  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-124006 · Severity: high · CVSS 8.1 · Published 2026-11-12

XWEB EVO is a web-based control and monitoring interface for industrial refrigeration and HVAC systems. A vulnerability in versions through 5.8.8 allows attackers to mathematically derive the Linux root password using a fixed prefix and daily password calculation, enabling unauthorized administrative access to affected systems. This product reached end-of-service in March 2026.

Technologies: [Copeland XWEB EVO](https://junglewise.ai/threats/technologies/xweb-evo). Vendors: [Copeland](https://junglewise.ai/threats/vendors/copeland).

## Quick answers

**Is CVE-2026-124006 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124006 being exploited in the wild.

**How severe is CVE-2026-124006?** High severity, with a CVSS score of 8.1, published 12 November 2026.

**Which products and versions are affected?** Copeland XWEB EVO through 5.8.8.

**Is there a fix for CVE-2026-124006?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-124006 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-124006?** Check whether you run Copeland XWEB EVO 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

The vulnerability stems from predictable credential generation logic where the root password is composed of a fixed prefix combined with a MAC-address-based daily value. Before version 5.7.0, the root credential was identical across all units; from 5.7.0 onward, it remains derivable due to the deterministic nature of the MAC-based calculation. An attacker with network access can compute the root password without authentication and gain OS-level control.

## Affected products

- Copeland XWEB EVO through 5.8.8

## Timeline

- 2026-11-12: disclosed

## References

- [https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate](https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate)
- [https://webapps.copeland.com/dixell/Content/Pages/AdvertisingMaterials/ProductNews/XWEB%20EVO%20EoS%20-%20Product_Bulletin_March_2026.pdf](https://webapps.copeland.com/dixell/Content/Pages/AdvertisingMaterials/ProductNews/XWEB%20EVO%20EoS%20-%20Product_Bulletin_March_2026.pdf)

## Related threats

- [Copeland XWEB EVO authentication bypass in password reset](https://junglewise.ai/threats/cve-2026-124015-xweb-evo-5-6-2-through-5-8-8-contains-an-authentication-bypass)
- [Copeland XWEB EVO arbitrary file write](https://junglewise.ai/threats/cve-2026-124014-xweb-evo-4-3-0-through-5-8-8-contains-an-unauthenticated)
- [Copeland XWEB EVO OS command injection in api.lua](https://junglewise.ai/threats/cve-2026-124013-xweb-evo-5-6-2-through-5-8-8-contains-an-authenticated-os)
- [Copeland XWEB EVO hardcoded credential authentication bypass](https://junglewise.ai/threats/cve-2026-124012-xweb-evo-5-6-2-through-5-8-8-contains-a-hardcoded-credential)
- [Copeland XWEB EVO information disclosure in sysinfo.lua](https://junglewise.ai/threats/cve-2026-124011-xweb-evo-5-6-2-through-5-8-8-contains-an-information-disclosure)