What is the CVSS score of CVE-2026-25109?

CVE-2026-25109 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Xweb 500b Pro Firmware are affected by CVE-2026-25109?

XWEB Pro versions 1.12.1 and earlier contain a critical remote code execution vulnerability that allows authenticated users to execute arbitrary commands on affected systems.

How to fix or mitigate CVE-2026-25109?

Within 24 hours: Audit access logs for XWEB Pro's 'get setup' route to identify suspicious activity; restrict administrative access to XWEB Pro to essential personnel only. Within 7 days: Implement network segmentation to isolate XWEB Pro systems; deploy WAF rules to block malicious input patterns in the 'devices' field parameter. Within 30 days: Contact vendor for patch availability and timeline; develop upgrade plan and test in staging environment; prepare alternative solutions or workarounds if patch remains unavailable.

Xweb 500b Pro Firmware CVE-2026-25109

HIGH

OS Command Injection (CWE-78)

2026-02-27 ics-cert@hq.dhs.gov

RCE Command Injection Xweb 500b Pro Firmware Xweb 300d Pro Firmware Xweb 500d Pro Firmware

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 27, 2026 - 01:16 nvd

HIGH 8.0

DescriptionCVE.org

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 when accessing the get setup route, leading to remote code execution.

AnalysisAI

Remote code execution in Xweb 300d Pro, 500d Pro, and 500b Pro firmware versions 1.12.1 and earlier allows authenticated attackers to execute arbitrary OS commands by injecting malicious input through the devices field in the setup route. An attacker with valid credentials can exploit this command injection vulnerability to gain complete system control. No patch is currently available for this vulnerability.