Quick answer
Direct answer
Risk scores
| CVSS metric | What it means |
|---|---|
| Attack vector (AV:A) | Adjacent network |
| Attack complexity (AC:L) | Low complexity |
| Privileges required (PR:H) | High privileges required |
| User interaction (UI:N) | No user interaction |
| Scope (S:C) | Scope changed: impact spreads beyond the component |
| Confidentiality (C:H) | High confidentiality impact |
| Integrity (I:H) | High integrity impact |
| Availability (A:H) | High availability impact |
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
About Progress Connection Manager For Objectscale
CVE-2026-3518 affects Progress Connection Manager For Objectscale, a product from Progress. Before acting, confirm where Progress Connection Manager For Objectscale runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.
What the flaw is
In plain terms: OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “All” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'killsession' command
The weakness class is Command Injection. Untrusted input ends up inside a system command.
Based on its CVSS vector, the flaw needs local or adjacent access, needs some level of access, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Affected versions and timeline
| Field | Detail |
|---|---|
| Product | Progress Connection Manager For Objectscale |
| Affected versions | Connection Manager For Objectscale before 7.2.63.1; Ecs Connection Manager before 7.2.63.1; Loadmaster before 7.2.54.17; Loadmaster before 7.2.63.1 |
| Published | Apr 20, 2026 |
| Last modified | Jun 17, 2026 |
| Added to CISA KEV | Not listed |
| Assigning CNA | security@progress.com |
How to detect it
- Inventory every instance of Progress Connection Manager For Objectscale and record the running version against the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
- Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.
How to fix it
- Apply the fixed version of Progress Connection Manager For Objectscale named in the vendor advisory.
- If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
- Rescan after the change to prove the exposure is gone, then close the ticket.
CTEM action plan
| CTEM stage | What to do for this CVE |
|---|---|
| Scope | Add every business service that depends on Progress Connection Manager For Objectscale to the current CTEM cycle. |
| Discover | Find all instances, including shadow and cloud deployments, and record versions and exposure. |
| Prioritize | Rank using EPSS and CVSS together with asset exposure and business impact. |
| Validate | Confirm the flaw is reachable and exploitable in your environment and that compensating controls work. |
| Mobilize | Assign the fix to the asset owner with a due date matched to the priority, then verify closure. |
CWE References
- CWE-77: Command Injection More CVEs with this weakness
Technical References
Frequently asked questions
Related CVEs
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In Progress Flowmon versions prior to 12.5.9 and 13.0.11, a vulnerability exists whereby an authenticated low-privileged user may craft a request during the PDF generation process that results in operations being performed with the privileges of another user, potentially leading to unauthorized access to sensitive data and unintended modifications to system configuration.
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