CVE-2026-24689
Published: 27 February 2026
Summary
CVE-2026-24689 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-2026-24689 is an OS command injection vulnerability (CWE-78) affecting XWEB Pro version 1.12.1 and prior. Published on 2026-02-27, the flaw exists in the firmware update apply action, where malicious input injected into the devices field enables remote code execution on the system. 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).
An authenticated attacker with high privileges can exploit this issue over the network, though it requires high attack complexity and no user interaction. Exploitation allows the attacker to achieve remote code execution, potentially compromising confidentiality, integrity, and availability with changed scope due to the high-impact vector.
CISA ICS Advisory ICSA-26-057-10, the associated CSAF JSON file on GitHub, and the vendor's system software update page on Copeland's webapps site provide further details on the vulnerability and mitigation guidance.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8952
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 devices field of the firmware update apply action.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS command injection vulnerability in web-based firmware update feature of XWEB Pro enables remote code execution via exploitation of a public-facing application (T1190) and abuse of command and scripting interpreter (T1059).
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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 input in the devices field during firmware update actions.
Remediates the specific command injection flaw in XWEB Pro firmware update functionality through timely patching.
Enforces least privilege to restrict high-privilege access required to exploit the firmware update vulnerability.