CVE-2026-4048 | BDVDB-2026-327690 Detail

Progress SoftwareLoadMaster

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#

CAPEC-88

Weaknesses#

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References#

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

Exploit#

No public exploit known

History#

Version 12026-04-20Record published in the CVE List.
Version 22026-04-22Most recent update recorded in the CVE List.

Published

Published: 2026-04-20
Last modified: 2026-04-22

Vendor information

Vendor: Progress Software
Product: LoadMaster

All Progress Software vulnerabilities

Score

8.4 High

EPSS

2.1%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 82.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Command Injection

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= V7.1.20.0 and < V7.2.63.0
Fixed
V7.2.63.0

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.4 High

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

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).