What is the CVSS score of CVE-2026-25111?

CVE-2026-25111 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 500d Pro Firmware are affected by CVE-2026-25111?

XWEB Pro versions 1.12.1 and earlier contain a critical command injection flaw that allows authenticated users to execute arbitrary code on affected systems.

How to fix or mitigate CVE-2026-25111?

Within 24 hours: Inventory all XWEB Pro installations and identify systems running version 1.12.1 or earlier; restrict access to the restore functionality to essential personnel only and monitor for suspicious activity. Within 7 days: Contact vendor for patch availability or confirm timeline; implement network segmentation to isolate XWEB Pro systems if patching is delayed. Within 30 days: Apply vendor patch immediately upon release; conduct forensic review of access logs for the restore route to detect potential exploitation attempts.

Xweb 500d Pro Firmware CVE-2026-25111

HIGH

OS Command Injection (CWE-78)

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

RCE Command Injection Xweb 500d Pro Firmware Xweb 500b Pro Firmware Xweb 300d 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 requests sent to the restore route.

AnalysisAI

Remote code execution in XWEB Pro versions 1.12.1 and earlier allows authenticated attackers to execute arbitrary OS commands via malicious input submitted to the restore functionality. The vulnerability affects Xweb 500d Pro, 500b Pro, and 300d Pro firmware versions, with no patch currently available. An attacker with valid credentials could compromise the affected device and gain full system control.

Technical ContextAI

Classified as CWE-78 (OS Command Injection). Affects Xweb 500B Pro Firmware. 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.