What’s Vulnerable › Vulnerabilities
CVE-2026-39993: Path Traversal to Root RCE in QNAP Download Station via Addon/Search addon Parameter
- Severity: high (CVSS 8.7 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-15 · updated 2026-10-15
- Weakness: CWE-23
Description
A relative path traversal vulnerability has been reported to affect Download Station. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following version: Download Station 5.10.2.313 and later Download Station 5.11.3.322 and later
Affected products
- QNAP Systems Inc. Download Station: from 5.10.x before 5.10.2.313; from 5.11.x before 5.11.3.322 — fixed in 5.10.2.313, 5.11.3.322
How to fix
Upgrade to a fixed version: QNAP Systems Inc. Download Station 5.10.2.313, 5.11.3.322. Check the vendor advisory for mitigations.
References
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