Yes. CISA added CVE-2024-7399 to its Known Exploited Vulnerabilities catalogue on 24 April 2026, which it does only when there is reliable evidence of active exploitation. CISA has not linked it to known ransomware campaigns. Samsung MagicINFO 9 Server contains a path traversal vulnerability that could allow an attacker to write arbitrary files as system authority.
What “exploited in the wild” means for CVE-2024-7399
For a CVE question like this, the practical answer is not just whether the flaw exists, but whether there is active exploitation evidence strong enough to change response priorities. CISA’s KEV inclusion is the key operational signal because it means defenders should treat the issue as real-world exposure, not a theoretical bulletin item. The path traversal detail also matters because it can change file-write behaviour on the server.
That combination shifts the question from “is this patched?” to “is this reachable, observable, and already abused in my environment?” If a server is internet-facing or supports uploads, administrative workflows, or file processing, the blast radius can be much larger than the product team’s original description suggests.
What defenders should confirm first
The first check is exposure, not exploitation noise. Confirm where Samsung MagicINFO 9 Server is deployed, whether any instance is externally reachable, and whether the vulnerable component is present on internet-facing or partner-accessible systems. Then compare those assets against the KEV catalogue and your own inventory so you know whether you are dealing with a confirmed exposure path or an unscoped system.
Because the issue is a path traversal that can enable arbitrary file write with system authority, validate whether the server can write to sensitive application, startup, or web-accessible paths. Even when no obvious compromise is visible, that capability can be enough for an attacker to place a web shell, alter configuration, or stage follow-on access.
How to respond if patching or upgrade must wait
When immediate remediation is not possible, reduce the attack surface aggressively. Put the server behind restricted network access, limit who can reach administrative functions, and remove any unnecessary direct internet exposure. If compensating controls are your only option, treat them as temporary and verify that they actually block the traversal path rather than just reducing background traffic.
For a CISA KEV item, waiting for a convenient maintenance window is usually the wrong decision unless the business impact is truly understood and documented. The safer posture is to shorten the exception period, increase monitoring on the exposed host, and make sure the system owner can explain why the deferral exists and what extra control is in place until it is closed.
Risk and Threat Considerations
Actively exploited path traversal flaws are attractive because they often turn one reachable HTTP request into direct filesystem impact. In this case, arbitrary file write as system authority can convert a seemingly narrow web issue into service takeover, malware staging, or persistence on the host.
Failure mechanism: An attacker abuses traversal sequences to break out of the intended file path, then writes or replaces files in locations that the server trusts or executes.
Impact: The result can include remote code execution, tampering with application assets, loss of integrity on the server, and a much broader incident response problem if the host is used as a foothold for lateral movement.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
CIS Controls v8 and NIST SP 800-53 Rev 5 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| CIS Controls v8 | CIS-4 — Secure Configuration of Enterprise Assets and Software | Path traversal exposure is reduced by hardening exposed server configuration and limiting writable paths. |
| CIS-7 — Continuous Vulnerability Management | CISA KEV-listed exploited vulnerabilities require prioritised identification and remediation. | |
| Recommendation — Harden the server configuration and restrict writable paths to shrink traversal impact. Prioritise KEV-listed systems and verify remediation with authenticated scanning. | ||
| NIST SP 800-53 Rev 5 | SI-10 — Information Input Validation | Traversal flaws arise from improper validation of file path input. |
| SI-2 — Flaw Remediation | Active exploitation requires rapid flaw remediation and tracking of exposure status. | |
| AU-6 — Audit Record Review, Analysis, and Reporting | Compromise checks depend on reviewing logs and host evidence after possible exploitation. | |
| Recommendation — Validate file path inputs and reject traversal sequences before filesystem access. Remediate the flaw quickly and track exception status until the fix is deployed. Review logs and host telemetry for signs of abnormal file writes or follow-on activity. | ||
Practitioner Guidance
What to prioritise: Treat KEV-listed exposure as a remediation queue, not a routine vulnerability backlog item. Verify whether any Samsung MagicINFO 9 Server instance is exposed, whether the vulnerable functionality is reachable, and whether file integrity on the host has already changed.
What to verify: Check for unusual file creation, modified web content, unexpected scheduled tasks, and any new or altered binaries or scripts on the server. If the system can write arbitrary files, review whether credentials, service accounts, or adjacent management interfaces may have been exposed during the same window.
Practitioner takeaway: For an actively exploited server-side file-write issue, the deciding factor is not just patch status, but whether the host has already been reachable long enough for an attacker to leave durable changes.
Related resources from NHI Mgmt Group
- Guide: Mobile Device Security Guide
- CVE-2024-7399 (Samsung MagicINFO 9 Server Path Traversal)
- Is CVE-2024-13159 (Ivanti Endpoint Manager (EPM) Absolute Path Traversal) being exploited in the wild?
- Is CVE-2024-13161 (Ivanti Endpoint Manager (EPM) Absolute Path Traversal) being exploited in the wild?
- Is CVE-2024-13160 (Ivanti Endpoint Manager (EPM) Absolute Path Traversal) being exploited in the wild?
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Reviewed and updated by the NHIMG editorial team on October 19, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org