CVE-2026-124006: Dixell/Copeland XWEB EVO Predictable Root Password Generation

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of 13 Nov 2026. If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?

0.6%

EPSS score, percentile 46.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

9.2 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (2)

Which versions are affected?

Affected

• 5.8.8 and earlier

Versions by product

Source: CISA KEV 2026.11.13, as of 13 Nov 2026; FIRST EPSS, as of 13 Nov 2026; CVE List, as of 14 Nov 2026. About the data.

Description

Dixell/Copeland XWEB EVO Predictable Root Password Generation

XWEB EVO through 5.8.8 contains a predictable credential generation vulnerability that allows attackers to derive the Linux root password by computing a fixed prefix combined with a daily password value. Attackers can calculate the deterministic root credential, which before 5.7.0 was identical across all units and from 5.7.0 onward remains derivable from the MAC-based daily password, to gain unauthorized root access to the underlying operating system. This product line reached it's end of service date in March 2026.

Source: CVE List, as of 14 Nov 2026. About the data.

What to do

Advisories and patches

• Software Download (Patch)
• End of Support Announcement (Vendor advisory)

This summary is based on the CVE record as of 14 Nov 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 14 Nov 2026. About the data.

Timeline