Vulnerability · Published Oct 18, 2021 · Assigned by icscert
CVE-2021-33023Advantech WebAccess
Critical 9.8
In plain English
A critical-severity heap buffer overflow in WebAccess from Advantech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.3%top 16.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-285-02 x_refsource_MISC