QTS, QuTS hero
Summary
| CVE | CVE-2025-62858 |
|---|---|
| State | PUBLISHED |
| Assigner | qnap |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-09 08:16:26 UTC |
| Updated | 2026-06-12 15:44:57 UTC |
| 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 |
Risk And Classification
Primary CVSS: v4.0 5.1 MEDIUM from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.003040000 probability, percentile 0.219330000 (date 2026-06-18)
Problem Types: CWE-121 | CWE-121 CWE-121
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 5.1 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 5.1 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N |
| 3.1 | [email protected] | Primary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
HighUser Interaction
NoneConfidentiality
NoneIntegrity
LowAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Qnap | Qts | 5.2.0.2737 | build_20240417 | All | All |
| Operating System | Qnap | Qts | 5.2.0.2744 | build_20240424 | All | All |
| Operating System | Qnap | Qts | 5.2.0.2782 | build_20240601 | All | All |
| Operating System | Qnap | Qts | 5.2.0.2802 | build_20240620 | All | All |
| Operating System | Qnap | Qts | 5.2.0.2823 | build_20240711 | All | All |
| Operating System | Qnap | Qts | 5.2.0.2851 | build_20240808 | All | All |
| Operating System | Qnap | Qts | 5.2.0.2860 | build_20240817 | All | All |
| Operating System | Qnap | Qts | 5.2.1.2930 | build_20241025 | All | All |
| Operating System | Qnap | Qts | 5.2.2.2950 | build_20241114 | All | All |
| Operating System | Qnap | Qts | 5.2.3.3006 | build_20250108 | All | All |
| Operating System | Qnap | Qts | 5.2.4.3070 | build_20250312 | All | All |
| Operating System | Qnap | Qts | 5.2.4.3079 | build_20250321 | All | All |
| Operating System | Qnap | Qts | 5.2.4.3092 | build_20250403 | All | All |
| Operating System | Qnap | Qts | 5.2.5.3145 | build_20250526 | All | All |
| Operating System | Qnap | Qts | 5.2.6.3195 | build_20250715 | All | All |
| Operating System | Qnap | Qts | 5.2.6.3229 | build_20250818 | All | All |
| Operating System | Qnap | Qts | 5.2.7.3256 | build_20250913 | All | All |
| Operating System | Qnap | Qts | 5.2.7.3297 | build_20251024 | All | All |
| Operating System | Qnap | Qts | 5.2.8.3332 | build_20251128 | All | All |
| Operating System | Qnap | Qts | 5.2.8.3350 | build_20251216 | All | All |
| Operating System | Qnap | Qts | 5.2.8.3359 | build_20251225 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2737 | build_20240417 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2782 | build_20240601 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2789 | build_20240607 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2802 | build_20240620 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2823 | build_20240711 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2851 | build_20240808 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.0.2860 | build_20240817 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.1.2929 | build_20241025 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.1.2940 | build_20241105 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.2.2952 | build_20241116 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.3.3006 | build_20250108 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.4.3070 | build_20250312 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.4.3079 | build_20250321 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.5.3138 | build_20250519 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.6.3195 | build_20250715 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.7.3256 | build_20250913 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.7.3297 | build_20251024 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.8.3321 | build_20251117 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.8.3350 | build_20251216 | All | All |
| Operating System | Qnap | Quts Hero | h5.2.8.3359 | build_20251225 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.0.3115 | build_20250430 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.0.3145 | build_20250530 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.0.3192 | build_20250716 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.1.3250 | build_20250912 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.1.3292 | build_20251024 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.2.3354 | build_20251225 | All | All |
| Operating System | Qnap | Quts Hero | h5.3.3.3424 | build_20260305 | All | All |
| Operating System | Qnap | Quts Hero | h6.0.0.3324 | build_20251125 | All | All |
| Operating System | Qnap | Quts Hero | h6.0.0.3382 | build_20260122 | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | QNAP Systems Inc. | QTS | affected 5.2.0 5.2.9.3410 build 20260214 custom | Not specified |
| CNA | QNAP Systems Inc. | QuTS Hero | affected h5.2.0 h5.2.9.3410 build 20260214 custom | Not specified |
| CNA | QNAP Systems Inc. | QuTS Hero | affected h5.3.0 h5.3.4.3500 build 20260520 custom | Not specified |
| CNA | QNAP Systems Inc. | QuTS Hero | affected ? h6.0.0.3397 build 20260206 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.qnap.com/en/security-advisory/qsa-26-10 | [email protected] | www.qnap.com | Broken Link |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: coral (en)
Additional Advisory Data
Solutions
CNA: 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
There are currently no legacy QID mappings associated with this CVE.