CVE-2025-52855QTS, QuTS hero
Updated under an hour ago ()
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It affects QNAP Systems Inc. QTS and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
A NULL pointer dereference 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 launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
- CVSS
- 5.1 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- qnap
- NVD analysis
- Analyzed
- Record last updated
- Oct 3, 2025
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
QNAP Systems Inc. QTS qnap_systems:qts (from the name) | from 5.2.x before 5.2.6.3195 build 20250715 | CNA record |
QNAP Systems Inc. QuTS hero qnap_systems:quts_hero (from the name) | from h5.2.x before h5.2.6.3195 build 20250715 | CNA record |
qnap qts qnap:qts | 5.2.0.2737; 5.2.0.2744; 5.2.0.2782; 5.2.0.2802; 5.2.0.2823; 5.2.0.2851; 5.2.0.2860; 5.2.1.2930; and 6 more ranges | NVD |
qnap quts_hero qnap:quts_hero | h5.2.0.2737; h5.2.0.2782; h5.2.0.2789; h5.2.0.2802; h5.2.0.2823; h5.2.0.2851; h5.2.0.2860; h5.2.1.2929; and 6 more ranges | NVD |
References
- https://www.qnap.com/en/security-advisory/qsa-25-36vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.