CVE-2020-2504
If exploited, this absolute path traversal vulnerability could allow attackers to traverse files in File Station.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
If exploited, this absolute path traversal vulnerability could allow attackers to traverse files in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.03% probability · 63th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-22, CWE-73, CWE-284
- Affected
- qnap/qes
- Source
- security@qnapsecurity.com.tw
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.qnap.com/zh-tw/security-advisory/qsa-20-17Vendor Advisory
- https://www.qnap.com/zh-tw/security-advisory/qsa-20-17Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.