CVE-2026-4048

Severity CVSS v4.0:

Pending analysis

Type:

CWE-77 Command Injection

Publication date:

20/04/2026

Last modified:

20/04/2026

Description

OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated attacker with “All” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in a custom WAF rule file during the file upload process.

Impact

Vector 3.x

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.40 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.40

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876