CVE-2026-24517
Published: 27 February 2026
Summary
CVE-2026-24517 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 44.1% 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly prevents OS command injection vulnerability by requiring validation of malicious inputs to the firmware update route.
Remediates the specific command injection flaw through timely application of vendor firmware updates as provided in mitigation guidance.
Mitigates impact of RCE from high-privilege exploitation by enforcing least privilege on accounts accessing the firmware update route.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS command injection in the web-exposed firmware update route directly enables remote code execution by an authenticated high-privileged attacker, mapping to exploitation of a public-facing application and Unix shell command execution.
NVD Description
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 firmware update route.
Deeper analysisAI
CVE-2026-24517 is an OS command injection vulnerability (CWE-78) in XWEB Pro version 1.12.1 and prior. Published on 2026-02-27, it affects the firmware update route, where malicious input can be injected into requests, leading to 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 (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 achieves remote code execution, resulting in high impacts to confidentiality, integrity, and availability, with a change in scope (S:C).
Mitigation guidance is available in CISA ICS Advisory ICSA-26-057-10 at https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10, the CSAF file at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json, and the system software update page at https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate.
Details
- CWE(s)