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CVE-2019-13556

In WebAccess versions 8.4.1 and prior, multiple stack-based buffer overflow vulnerabilities are...

8.8 High

In WebAccess versions 8.4.1 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
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.12%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

In WebAccess versions 8.4.1 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-2019-13556
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness
CWE-121, CWE-787
Updated
2026-11-02
CVE List No score

In WebAccess versions 8.4.1 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-2019-13556
Weakness
CWE-121
Updated
2026-11-02
EUVDEUVD-2019-5011 No score

In WebAccess versions 8.4.1 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-2019-5011
Updated
2026-11-03
GitHub AdvisoriesGHSA-rxcj-pf3v-8g36 No score

In WebAccess versions 8.4.1 and prior, multiple stack-based buffer overflow vulnerabilities are...

In WebAccess versions 8.4.1 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-rxcj-pf3v-8g36
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

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

In short

CVE-2019-13556 is a high vulnerability (CVSS 8.8) in Advantech Webaccess, published September 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.12%, the 82nd percentile. No source names a fixed version.

References

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