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CVE-2019-10991

In WebAccess/SCADA, Versions 8.3.5 and prior, multiple stack-based buffer overflow...

9.8 Critical

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

8.98%Up 4.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

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.

Record
CVE-2019-10991
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2019-10991
Updated
2026-11-02
EUVDEUVD-2019-2705 No score

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.

Record
EUVD-2019-2705
Updated
2026-11-03
GitHub AdvisoriesGHSA-4j2g-7wxj-73hg 9.8

In WebAccess/SCADA, Versions 8.3.5 and prior, multiple stack-based buffer overflow...

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.

Record
GHSA-4j2g-7wxj-73hg
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-10991 is a critical vulnerability (CVSS 9.8) in Advantech Webaccess, published June 28, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.98%, the 95th percentile. No source names a fixed version.

References

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