CVE-2026-39993

EUVD-2026-101879
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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
qnapCNA
8.7 HIGH
NETWORK
LOW
LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 28.35%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
qnapdownload_station
5.10.0 ≤
𝑥
< 5.10.2.313
CNA
qnapdownload_station
5.11.0 ≤
𝑥
< 5.11.3.322
CNA
Common Weakness Enumeration
References
https://www.qnap.com/en/app_releasenotes/list.php?app_choose=DownloadStation