PT-2021-20014 · Unknown · Webaccess Hmi Designer

Published 2021-06-24 · Updated 2021-07-01 · CVE-2021-33002

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions WebAccess HMI Designer versions 2.1.9.95 and prior

Description The issue allows an attacker to execute arbitrary code through an out-of-bounds write when a maliciously crafted project file is opened. This requires user interaction.

Recommendations For versions 2.1.9.95 and prior, avoid opening project files from untrusted sources until a fix is available. As a temporary workaround, consider restricting access to project files to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-33002

ZDI-21-488

Affected Products

Webaccess Hmi Designer

References · 4

• https://zerodayinitiative.com/advisories/ZDI-21-488 · Security Note
• https://osv.dev/vulnerability/CVE-2021-33002 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33002 · Security Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01 · Note