Out-of-bounds write in Advantech WebAccess
Priority MEDIUM 57CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Advantech WebAccess 8.3.2 and below is vulnerable to a stack buffer overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability by sending a crafted HTTP request to broadweb/system/opcImg.asp.
Why it matters now
EPSS 0.21539 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15704
- 2026-10-03 Alias added: GHSA-p37j-gvw8-qg5v
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-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-2018-15704 · CVE Program
- CVE-2018-15704 · NVD
- FIRST EPSS
- GHSA-p37j-gvw8-qg5v · GitHub Advisory Database · CC BY 4.0
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