A command injection vulnerability has been reported to affect certain versions of Malware Remover. If exploited, this vulnerability allows remote attackers to execute arbitrary commands. This issue affects: QNAP Systems Inc. Malware Remover versions prior to 4.6.1.0. This issue does not affect: QNAP Systems Inc. Malware Remover 3.x.
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesHigh
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 4.0 → 6.2 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 4.0 → 4.0 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 4.0 |
Affected Software
| Vendor | Product | Version |
|---|
| qnap | malware_remover | ≥ 4.5.4.0, < 4.6.1.0 |
| QNAP Systems Inc. | Malware Remover | < 4.6.1.0 |
| QNAP Systems Inc. | Malware Remover | 3.x |
Published: 2021-05-13
