Improper access control in Advantech WebAccess
Priority LOW 36CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass, Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284 and CWE-522.
Summary
Advantech WebAccess 8.3.4 does not properly restrict an RPC call that allows unauthenticated, remote users to read files. An attacker can use this vulnerability to recover the administrator password.
Why it matters now
EPSS 0.01403 72nd percentileScored 2026-11-07
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 | 8.3.4 | — | No fix listed | CNA |
- Advantech WebAccess Vendor— Affected 8.3.4 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-3942
- 2026-10-03 Alias added: GHSA-6q62-ccgm-chgc
References
More Advantech Webaccess vulnerabilities
- TI-2016-00768 Unrestricted file upload vulnerability in the uploadImageCommon function in the… CVSS 3.0CRITICAL 9.8
- TI-2017-12289 Path traversal in Advantech WebAccess 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
Sources
- CVE-2019-3942 · CVE Program
- CVE-2019-3942 · NVD
- FIRST EPSS
- GHSA-6q62-ccgm-chgc · GitHub Advisory Database · CC BY 4.0
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