A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory.
We have already fixed the vulnerability in the following versions:
QTS 5.2.7.3256 build 20250913 and later
QuTS hero h5.2.7.3256 build 20250913 and later
QuTS hero h5.3.1.3250 build 20250912 and later
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Qnap Systems Inc. |
|
No data.
No data.
No data.
References
| Link | Providers |
|---|---|
| https://www.qnap.com/en/security-advisory/qsa-25-50 |
|
History
Fri, 02 Jan 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later | |
| Title | QTS, QuTS hero | |
| First Time appeared |
Qnap Systems Inc.
Qnap Systems Inc. qts Qnap Systems Inc. quts Hero |
|
| Weaknesses | CWE-134 | |
| CPEs | cpe:2.3:a:qnap_systems_inc.:qts:*:*:*:*:*:*:*:* cpe:2.3:a:qnap_systems_inc.:quts_hero:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Qnap Systems Inc.
Qnap Systems Inc. qts Qnap Systems Inc. quts Hero |
|
| References |
| |
| Metrics |
cvssV4_0
|
MITRE
Status: PUBLISHED
Assigner: qnap
Published:
Updated: 2026-01-02T14:55:54.769Z
Reserved: 2025-07-04T01:08:32.756Z
Link: CVE-2025-53591
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-01-02T15:16:01.653
Modified: 2026-01-02T16:45:26.640
Link: CVE-2025-53591
Redhat
No data.
OpenCVE Enrichment
No data.