Path traversal in Advantech WebAccess
Priority HIGH 73CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.50321 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Advantech WebAccess | Advantech WebAccess | — | No fix listed | CNA |
- Advantech WebAccess Vendor— Affected Advantech WebAccess Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16720
- 2026-10-03 Alias added: GHSA-fh38-p8hv-hjcv
References
More Advantech Webaccess vulnerabilities
- TI-2016-00768 Unrestricted file upload vulnerability in the uploadImageCommon function in the… CVSS 3.0CRITICAL 9.8
- TI-2016-00771 Multiple heap-based buffer overflows in Advantech WebAccess before 8.1 allow remote… CVSS 3.0CRITICAL 9.8
- TI-2016-00770 Multiple stack-based buffer overflows in Advantech WebAccess before 8.1 allow remote… CVSS 3.0CRITICAL 9.8
- TI-2018-11192 Out-of-bounds write in Advantech WebAccess CVSS 3.0HIGH 8.8
- TI-2021-16012 Stack-based buffer overflow in Advantech WebAccess CVSS 3.1CRITICAL 9.8
- TI-2018-05047 The VBWinExec function in Node\AspVBObj.dll in Advantech WebAccess 8.3.0 allows remote… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2017-16720 · CVE Program
- CVE-2017-16720 · NVD
- FIRST EPSS
- GHSA-fh38-p8hv-hjcv · GitHub Advisory Database · CC BY 4.0
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