# CVE-2026-124011: Copeland XWEB EVO information disclosure in sysinfo.lua

Source: https://junglewise.ai/threats/cve-2026-124011-xweb-evo-5-6-2-through-5-8-8-contains-an-information-disclosure  
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-2026-124011 · Severity: medium · CVSS 5.3 · Published 2026-11-12

XWEB EVO is a web-based device controller used in refrigeration and HVAC systems. An unauthenticated attacker can access system information including the device's MAC address and clock values through a publicly available interface, then use this data to derive the MAC-based daily password and gain unauthorized admin access to the device.

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

## Quick answers

**Is CVE-2026-124011 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124011 being exploited in the wild.

**How severe is CVE-2026-124011?** Medium severity, with a CVSS score of 5.3, published 12 November 2026.

**Which products and versions are affected?** Copeland XWEB EVO 5.6.2 through 5.8.8.

**Is there a fix for CVE-2026-124011?** 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-2026-124011 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-124011?** 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 is an information disclosure flaw in XWEB EVO versions 5.6.2 through 5.8.8 where the sysinfo.lua endpoint exposes the device's eth0 MAC address and system clock without authentication. An unauthenticated network attacker can leverage this disclosed information to offline compute the MAC-based daily password, which grants administrative access. This allows complete bypass of the device's authentication mechanism.

## Affected products

- Copeland XWEB EVO 5.6.2 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 command injection vulnerability](https://junglewise.ai/threats/cve-2026-124010-xweb-evo-before-5-6-2-contains-a-command-injection-vulnerability)