Vulnerability · Published Jun 24, 2021 · Assigned by icscert
CVE-2021-33000
High 7.8
In plain English
A high-severity heap buffer overflow in WebAccess HMI Designer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.0%top 35.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | WebAccess HMI Designer | versions 2.1.9.95 and prior |
Weakness: CWE-122
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01 x_refsource_MISC