CVE
Copeland XWEB EVO pre-auth command injection via username field
Affects Copeland XWEB EVO versions 5.2.3 through before 5.7.0. Fixed in 5.7.0.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 5.7.0
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 5.7.0.
- Last modified
- Whether it needs action now or is a reference record, by fixed rules, with why. Last checked is when cve.now last re-read it.What do these mean? →
- Reference
- Last checked
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 4.90% · 92nd percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 26/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Copeland's XWEB EVO is affected by a flaw that lets a remote attacker, without logging in, run arbitrary operating system commands by injecting shell characters into the username field before the password check. Because the attacker can combine this with a root-level interpreter on the device, they could gain full control of the system.
Read the original description
XWEB EVO versions 5.2.3 through before 5.7.0 contains a pre-authentication OS command injection vulnerability that allows unauthenticated remote attackers to execute arbitrary OS commands by injecting shell metacharacters into the username field of login.lua, cleanout.lua, or api.lua before the password check occurs. Attackers can exploit this flaw combined with the setuid-root wlua interpreter to execute commands with root privileges, achieving full system compromise. This product line reached it's end of service date in March 2026.
Who should check
Teams running Copeland XWEB EVO controllers at versions 5.2.3 through before 5.7.0; this product line reached end of service in March 2026.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure17/25No login or user action needed, reachable over the network without a login · Unknown: Advisories don't say whether default setups are affected
- Reach?/20Unknown. No tracked technology or package matched
- Severity9.3/10CVSS 9.3
- No patch0/5No signal
What would change the score
- Would score about 71 if added to CISA KEV
- Would score about 66 if CISA's SSVC rates exploitation active
- Would score about 31 if advisories confirm default setups are exposed
What to do
Upgrade to a fixed version: 5.7.0.
Check your systems with an agent
Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.
Check whether my systems are affected by CVE-2026-124002 (Dixell/Copeland XWEB EVO Pre-Auth OS Command Injection via Username), using the cve.now data below.
Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.
What cve.now has for CVE-2026-124002 (entry last updated 2026-11-13):
Affected:
- Copeland XWEB EVO: from 5.2.3, fixed in 5.7.0
Fixed versions: 5.7.0.
Conditions (all must be true for the bug to be hit):
- Copeland XWEB EVO versions 5.2.3 through before 5.7.0 (source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username)
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: network access, no login, no user action.
CISA KEV: CVE-2026-124002 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-124002 only. If you also check another CVE, look up its own KEV status; never assume it from this one.
How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.
Verify against the linked advisories before concluding, and cite the date you read each one:
- https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate
- https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.
Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.
Entry: https://cve.now/CVE-2026-124002
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-124002"}.Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now1 day
- Record last updated
Affected versions
- Copeland XWEB EVO
From 5.2.3 · fixed in 5.7.0
Evidence 5
Vendor advisory · 1
Establishes: Affected and fixed versions.
- Patch
CVE record · 2
Establishes: The identifier and description.
- Record
- Record
Public exploit code · 1
Establishes: Public exploit code exists (Exploit-DB, Metasploit, Nuclei and GitHub).
- Exploit
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-124002
Is CVE-2026-124002 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
The XWEB EVO web interface has a pre-authentication OS command injection flaw in the username field, so commands can run without logging in. The commands run with root privileges through the setuid-root wlua interpreter, which can lead to full system compromise.Source: vulncheck.com
Which versions are affected by CVE-2026-124002?
XWEB EVO: from 5.2.3 before 5.7.0.Source: cve.now feed data
Am I affected, and how do I check?
Copeland XWEB EVO versions 5.2.3 up to but not including 5.7.0 are in the affected range. To check a device, compare its XWEB EVO software version against that range.Source: vulncheck.com
How do I fix CVE-2026-124002?
Upgrade to XWEB EVO 5.7.0, the first version listed as fixed in the product data. The checked facts do not include a separate vendor advisory fix entry or patch IDs.Source: vulncheck.com