CVE-2017-16720
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has...
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.
- Record
CVE-2017-16720- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.
- Record
CVE-2017-16720- Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2017-7904 No score
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.
- Record
EUVD-2017-7904- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fh38-p8hv-hjcv
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has...
A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.
- Record
GHSA-fh38-p8hv-hjcv- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Advantech WebAccess < 8.3 - Directory Traversal / Remote Code Execution | 2018-03-12 |
| PoC in GitHub | CN016/WebAccess-CVE-2017-16720- | 2023-10-10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-16720 is a critical vulnerability (CVSS 9.8) in Advantech Webaccess, published January 5, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 50.3%, the 98th percentile. No source names a fixed version.