Vulnerability Report

CVE-2020-16207

RCE

Title: Multiple heap-based buffer overflow in Advantech WebAccess HMI Designer

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2020-16207.

CWE Category CWE-787

Published Date Aug 06, 2020

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

3.73%

Vulnerability Summary

CVE-2020-16207: Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Multiple heap-based buffer overflow vulnerabilities may be exploited by opening specially crafted project files that may overflow the heap, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.

Impacted Vendors

advantech 1

Reference Links

https://us-cert.cisa.gov/ics/advisories/icsa-20-219-02 https://www.zerodayinitiative.com/advisories/ZDI-20-950/ https://www.zerodayinitiative.com/advisories/ZDI-20-951/ https://www.zerodayinitiative.com/advisories/ZDI-20-955/ https://www.zerodayinitiative.com/advisories/ZDI-20-958/ https://www.zerodayinitiative.com/advisories/ZDI-20-959/ https://us-cert.cisa.gov/ics/advisories/icsa-20-219-02 https://www.zerodayinitiative.com/advisories/ZDI-20-950/ https://www.zerodayinitiative.com/advisories/ZDI-20-951/ https://www.zerodayinitiative.com/advisories/ZDI-20-955/ https://www.zerodayinitiative.com/advisories/ZDI-20-958/ https://www.zerodayinitiative.com/advisories/ZDI-20-959/

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-16207 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 17, 2026 MODIFIED

Vulnerability data updated via NVD.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

August 06, 2020 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


                                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.