CVE-2026-3517
OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF
Description
OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “Geo Administration” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'addcountry' command
INFO
Published Date :
April 20, 2026, 2:16 p.m.
Last Modified :
April 20, 2026, 7:05 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-3517
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | f9fea0b6-671e-4eea-8fde-31911902ae05 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update Progress ADC Products to the latest version.
- Review and sanitize all user inputs to the 'addcountry' command.
- Restrict 'Geo Administration' permissions where possible.
- Implement input validation for all commands.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-3517.
| URL | Resource |
|---|---|
| https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-3517 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-3517
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-3517 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-3517 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Apr. 20, 2026
Action Type Old Value New Value Added Description OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “Geo Administration” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'addcountry' command Added CVSS V3.1 AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-77 Added Reference https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876