Improper privilege management in Advantech WebAccess
Priority LOW 34CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- 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-269.
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, an improper privilege management vulnerability may allow an authenticated user to modify files when read access should only be given to the user.
Why it matters now
EPSS 0.0035 28th 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-2018-8841
- 2026-10-03 Alias added: GHSA-5rwg-3977-9qwq
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-2018-8841 · CVE Program
- CVE-2018-8841 · NVD
- FIRST EPSS
- GHSA-5rwg-3977-9qwq · GitHub Advisory Database · CC BY 4.0
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