TI-2020-12731 Aliases CVE-2020-16202 GHSA-rfmg-4pjp-2fr4

Incorrect permission assignment in WebAccess Node

LOW 34CWE-732Published 2020-09-22 · Updated 2024-08-04

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

WebAccess Node (All versions prior to 9.0.1) has incorrect permissions set for resources used by specific services, which may allow code execution with system privileges.

Why it matters now

EPSS 0.0038 32nd percentileScored 2026-11-07

Fix Fixed WebAccess Node: 9.0.1

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
—	WebAccess Node	before 9.0.1	9.0.1	Patch available	CNA

WebAccess Node Vendor— Affected before 9.0.1 Fixed in 9.0.1 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:advantech:webaccess::::::::	before 9.0.1	Vulnerable	Advantech

cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:* Versions before 9.0.1 Vulnerable ·Advantech

Remediation

Fix · CNA WebAccess Node Fixed in 9.0.1

Timeline

2026-10-02 Threatist record created from CVE-2020-16202
2026-10-03 Alias added: GHSA-rfmg-4pjp-2fr4

References

Advisory 1

https://us-cert.cisa.gov/ics/advisories/icsa-20-261-01

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

See all 102 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences