CVE-2019-10991

9.8 criticalEPSS 9.0%

Critical (9.8) in advantech webaccess. EPSS 9.0% chance of exploitation in the next 30 days.

In WebAccess/SCADA, Versions 8.3.5 and prior, multiple stack-based buffer overflow vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 9.0% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2019-06-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

advantech:webaccess

References

https://www.us-cert.gov/ics/advisories/icsa-19-178-05
https://www.zerodayinitiative.com/advisories/ZDI-19-586/
https://www.zerodayinitiative.com/advisories/ZDI-19-588/
https://www.zerodayinitiative.com/advisories/ZDI-19-589/
https://www.zerodayinitiative.com/advisories/ZDI-19-592/

Check your stack JSON