What’s Vulnerable › Vulnerabilities

CVE-2021-33000

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-24 · updated 2026-06-17
• Weakness: CWE-122

Description

Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).

Affected products

• Advantech WebAccess HMI Designer: through 2.1.9.95

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01
• https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01

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