# CVE-2026-124004: Copeland XWEB EVO hardcoded backdoor authentication bypass

Source: https://junglewise.ai/threats/cve-2026-124004-xweb-evo-before-5-6-2-contains-a-hardcoded-backdoor-password  
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-2026-124004 · Severity: critical · CVSS 9.8 · Published 2026-11-12

XWEB EVO is a web-based control and monitoring system for refrigeration units and HVAC equipment. An unauthenticated attacker can use a hardcoded credential to gain full administrative access to the application, allowing them to modify system settings, disable alarms, or shut down controlled equipment without authorization.

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

## Quick answers

**Is CVE-2026-124004 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124004 being exploited in the wild.

**How severe is CVE-2026-124004?** Critical severity, with a CVSS score of 9.8, published 12 November 2026.

**Which products and versions are affected?** Copeland XWEB EVO before 5.6.2.

**Is there a fix for CVE-2026-124004?** Yes: fixed in 5.6.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-124004 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-124004?** 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.

## How to fix

- Fixed in 5.6.2

## Technical details

The application contains a hardcoded backdoor password that bypasses authentication for the Administrator account. Attackers can authenticate remotely over the network using the credential "xwebevonewgeneration" to obtain a complete administrative session without prior authorization. The vulnerability affects versions before 5.6.2 and is readily exploitable in a single request.

## Affected products

- Copeland XWEB EVO before 5.6.2

## 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)