What’s Vulnerable › Vulnerabilities

CVE-2021-38408

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 11.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-09 · updated 2026-06-17
• Weakness: CWE-121

Description

A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.

Affected products

• Advantech WebAccess: through 9.02

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-245-03
• https://us-cert.cisa.gov/ics/advisories/icsa-21-245-03

Get alerted when CVE-2021-38408 or the next vulnerability affects your stack