CVE-2020-2504
CVE-2020-2504 is a medium-severity vulnerability in Qnap Qes with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 5.8)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Qnap Qes
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2020-2504?
- 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.
- How severe is CVE-2020-2504?
- CVE-2020-2504 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2020-2504 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-2504?
- CVE-2020-2504 primarily affects Qnap Qes. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-2504?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-2504 published?
- CVE-2020-2504 was published on 2020-12-24 and last updated on 2026-06-17.
References
Affected products (8)
- cpe:2.3:a:qnap:qes:*:*:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:-:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:build_20200211:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:build_20200303:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:build_20200319:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:build_20200424:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:build_20200515:*:*:*:*:*:*
- cpe:2.3:a:qnap:qes:2.1.1:build_20200811:*:*:*:*:*:*
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