How severe is CVE-2019-6543?

CVE-2019-6543 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-6543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6543?

CVE-2019-6543 primarily affects Aveva Indusoft Web Studio. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-6543?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-6543 published?

CVE-2019-6543 was published on 2019-02-13 and last updated on 2026-06-17.

CVE-2019-6543

CVE-2019-6543 is a critical-severity vulnerability in Aveva Indusoft Web Studio with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Aveva Indusoft Web Studio
Published: 2019-02-13
Last modified: 2026-06-17

Description

AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update. Code is executed under the program runtime privileges, which could lead to the compromise of the machine.

Frequently asked questions

What is CVE-2019-6543?: AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update. Code is executed under the program runtime privileges, which could lead to the compromise of the machine.
How severe is CVE-2019-6543?: CVE-2019-6543 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-6543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6543?: CVE-2019-6543 primarily affects Aveva Indusoft Web Studio. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-6543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-6543 published?: CVE-2019-6543 was published on 2019-02-13 and last updated on 2026-06-17.

References

Affected products (29)

cpe:2.3:a:aveva:indusoft_web_studio:6.1:sp5:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:6.1:sp6_p3:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:*:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp2:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p2:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p3:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p4:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p5:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p6:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p7:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p8:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:7.1:sp3_p9:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:*:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:p1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:p2:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:p3:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:sp1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:sp1_p1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:sp2:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.0:sp2_p1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.1:*:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.1:p1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.1:sp1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.1:sp1_p1:*:*:*:*:*:*
cpe:2.3:a:aveva:indusoft_web_studio:8.1:sp2:*:*:*:*:*:*
cpe:2.3:a:aveva:intouch_machine_edition_2014:r2:*:*:*:*:*:*:*

More vulnerabilities in Aveva Indusoft Web Studio

CVE-2018-17916 — Critical (CVSS 9.8): InduSoft Web Studio versions prior to 8.1 SP2, and InTouch Edge HMI (formerly InTouch Machine Edition) versions prior…
CVE-2018-17914 — Critical (CVSS 9.8): InduSoft Web Studio versions prior to 8.1 SP2, and InTouch Edge HMI (formerly InTouch Machine Edition) versions prior…
CVE-2018-10620 — Critical (CVSS 9.8): AVEVA InduSoft Web Studio v8.1 and v8.1SP1, and InTouch Machine Edition v2017 8.1 and v2017 8.1 SP1 a remote user could…
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