Vulnerability details
CVE-2026-34009
QNAP Systems Notes Station 3
**Container Escape** Host user home directory mounted with write access into application container
CVSS 4.0
8.4High
Official description
An improper isolation or compartmentalization vulnerability has been reported to affect Notes Station 3. If a local attacker gains an administrator account, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: Notes Station 3 3.9.11 and later
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.4High | 4.0 | CVEProject cvelistV5 (CNA) (qnap) | CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| QNAP Systems Inc. | Notes Station 3 | 3.9.x ≤ v < 3.9.11 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-10-15
- Last updated
- 2026-10-15
- State
- Published
- Assigner (CNA)
- qnap
Exploit prediction (EPSS)
0.11%
Probability of exploitation in 30 days
1.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-653