CVE-2026-25111
Published: 27 February 2026
Summary
CVE-2026-25111 is a high-severity OS Command Injection (CWE-78) vulnerability in Copeland Xweb 500B Pro Firmware. Its CVSS base score is 8.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 28.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-25111 is an OS command injection vulnerability (CWE-78) in XWEB Pro version 1.12.1 and prior. Published on 2026-02-27, it enables an authenticated attacker to achieve remote code execution on the affected system by injecting malicious input into requests sent to the restore route. The vulnerability carries a CVSS v3.1 base score of 8.0 (AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).
A high-privileged authenticated attacker (PR:H) can exploit this vulnerability over the network (AV:N) with high attack complexity (AC:H) and no user interaction required (UI:N). Successful exploitation grants remote code execution on the system, resulting in high impacts to confidentiality, integrity, and availability, along with a change in scope (S:C).
CISA has issued ICS Advisory ICSA-26-057-10 addressing this issue, available at https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10, with a corresponding CSAF file at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json. A system software update page is provided at https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8956
Vulnerability details
An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote code execution on the system by injecting malicious input into requests sent to the restore route.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE-2026-25111 is an OS command injection vulnerability in a web application (XWEB Pro), enabling authenticated remote attackers to achieve RCE via exploitation of a public-facing application.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents OS command injection by validating and sanitizing malicious inputs to the restore route.
Remediates the specific vulnerability in XWEB Pro version 1.12.1 and prior by applying the vendor-provided software update.
Enforces least privilege for high-privileged accounts accessing the restore route, limiting the scope and impact of remote code execution.