CVE-2026-25721
Published: 27 February 2026
Summary
CVE-2026-25721 is a high-severity OS Command Injection (CWE-78) vulnerability in Copeland Xweb 300D 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 23.0% 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-2026-25721 is an OS command injection vulnerability (CWE-78) in XWEB Pro version 1.12.1 and prior. The flaw resides in the API V1 route's restore action, where malicious input can be injected into the server username and/or password fields, published on 2026-02-27 with 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).
An authenticated attacker with high privileges (PR:H) can exploit this vulnerability over the network (AV:N), though it requires high attack complexity (AC:H) and no user interaction (UI:N). Successful exploitation enables remote code execution (RCE) on the affected system, resulting in high impacts to confidentiality, integrity, and availability, with a changed scope (S:C).
Mitigation guidance is available in CISA ICS Advisory ICSA-26-057-10, the associated CSAF document at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json, and the vendor's system software update page at https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8979
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 the server username and/or password fields of the restore action…
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in the API V1 route.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS command injection in web API restore action enables exploitation of public-facing application (T1190) for remote code execution via command and scripting interpreter (T1059).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Requires timely application of the vendor's system software update to remediate the specific OS command injection vulnerability in XWEB Pro API V1 restore action.
Prevents OS command injection by validating and sanitizing malicious inputs in the server username and password fields of the API V1 restore action.
Facilitates detection and prevention of exploitation by receiving and acting on CISA ICSA-26-057-10 advisory and vendor updates for this CVE.