Heap-based buffer overflow in Advantech WebAccess
Priority MEDIUM 51CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, a heap-based buffer overflow vulnerability has been identified, which may allow an attacker to execute arbitrary code.
Why it matters now
EPSS 0.05569 92nd 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 | WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, WebAccess/NMS 2.0.3 and prior. | — | No fix listed | CNA |
- WebAccess VendorAdvantech Affected WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, WebAccess/NMS 2.0.3 and prior. Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:* | up to 8.2_20170817; up to 8.3.0 | Vulnerable | Advantech |
| cpe:2.3:a:advantech:webaccess_dashboard:*:*:*:*:*:*:*:* | up to 2.0.15 | Vulnerable | Advantech |
| cpe:2.3:a:advantech:webaccess_scada:*:*:*:*:*:*:*:* | before 8.3.1 | Vulnerable | Advantech |
| cpe:2.3:a:advantech:webaccess\/nms:*:*:*:*:*:*:*:* | up to 2.0.3 | Vulnerable | Advantech |
- cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:* Versions up to 8.2_20170817; up to 8.3.0 Vulnerable ·Advantech
- cpe:2.3:a:advantech:webaccess_dashboard:*:*:*:*:*:*:*:* Versions up to 2.0.15 Vulnerable ·Advantech
- cpe:2.3:a:advantech:webaccess_scada:*:*:*:*:*:*:*:* Versions before 8.3.1 Vulnerable ·Advantech
- cpe:2.3:a:advantech:webaccess\/nms:*:*:*:*:*:*:*:* Versions up to 2.0.3 Vulnerable ·Advantech
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8845
- 2026-10-03 Alias added: GHSA-r2p8-8cx3-42qq
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-2018-8845 · CVE Program
- CVE-2018-8845 · NVD
- FIRST EPSS
- GHSA-r2p8-8cx3-42qq · GitHub Advisory Database · CC BY 4.0
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