CVE-2026-24720
An allocation of resources without limits or throttling vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the vulnerability ...
Affects 0 products across 1 vendor.
Software allocates resources without imposing limits, allowing attackers to exhaust system capacity.
QNAP File Station 6 contains a resource exhaustion vulnerability that allows an authenticated remote attacker to monopolize system resources, effectively denying access to other users and processes. An attacker who has obtained any valid user account can exploit this flaw to cause a denial-of-service condition affecting the file storage system. In OT environments where QNAP NAS devices are used for historian data storage, backup, or file sharing between engineering workstations, this could disrupt access to critical operational data and indirectly impact process visibility.
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| CVE ID | CVE-2026-24720 |
|---|---|
| Published | 2026-06-10 |
| Last Modified | 2026-06-10 |
| ICS Relevance | 70% |
| Weakness (CWE) | |
| Source | NVD |
An allocation of resources without limits or throttling vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later
Source: NIST NVD / MITRE CVE Database
| Vendor | Product | Fixed Version |
|---|---|---|
| Qnap | — | — |
Fixed Version: File Station 5 5.5.6.5243
Patch introduces resource allocation limits and throttling controls within File Station to prevent authenticated users from exhausting system resources and causing denial of service to other users and processes.
View Vendor Advisory →| CISA KEV | Not in KEV catalog |
|---|---|
| Public Exploit | Not confirmed |
| PoC Code | Not confirmed |
Deploy rate-limiting rules on perimeter firewalls and reverse proxies to restrict the number of simultaneous or rapid HTTP/HTTPS requests per authenticated session to QNAP File Station ports (default 443, 8080, 8443). Block all direct internet access to QNAP management interfaces and enforce network segmentation so only authorized OT workstations can reach the NAS. Deploy at network perimeter and inter-VLAN firewall between IT/OT zones.
No reliable network detection signature exists for this vulnerability class — apply the compensating controls above and the vendor patch. SAGE only publishes a network rule when a concrete on-the-wire signature can be grounded in the advisory.
Virtual patch generated by CITED Relevance SAGE. Validate in isolated environment before production deployment. Compensating control only - does not replace vendor patch.
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