CVE-2025-62858
Received
Received - Intake
Buffer Overflow in QNAP QTS and QuTS hero
Publication date: 2026-06-09
Last updated on: 2026-06-09
Assigner: QNAP Systems, Inc.
Description
Description
A buffer overflow 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 modify memory or crash processes.
We have already fixed the vulnerability in the following versions:
QTS 5.2.9.3410 build 20260214 and later
QuTS hero h5.2.9.3410 build 20260214 and later
QuTS hero h5.3.4.3500 build 20260520 and later
QuTS hero h6.0.0.3397 build 20260206 and later
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| qnap | qts | From 5.2.9.3410 (inc) |
| qnap | quts_hero | From h5.2.9.3410 (inc) |
| qnap | quts_hero | From h5.3.4.3500 (inc) |
| qnap | quts_hero | From h6.0.0.3397 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |