CVE-2020-12019

highpriority · track · 40EPSS 0.022 · 82 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.17% (82nd) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-28

WebAccess Node Version 8.4.4 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedWebAccess Nodecisa_csaf_ot
Advantech has released patch P0520844 for WebAccess Node Version 8.4.4 to address the reported vulnerability.
https://support.advantech.com/support/DownloadSRDetail_New.aspx?SR_ID=1-MS9MJV&Doc_Source=Download

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121USCWE-121US

affected products (4)

Products and version ranges known to be affected.

WebAccess Node: Version 8.4.4 and priorall versionscisa_csaf_otUS
Advantech WebAccess Node≤ 8.4.4cisa_csaf_otUS
n/a WebAccess Node≤ Version 8.4.4 and priorenisa_euvdEU
advantech webaccess≤ 8.4.4nvdUScpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-20-161-01Advantech WebAccess Node2020-06-09icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could crash the application being accessed; a buffer overflow condition may allow remote code execution.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2020-06-15modified 2026-06-17

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+16135 more

references (7)

External citations — patches, advisories, analysis.

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