How severe is CVE-2018-17916?

CVE-2018-17916 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-2018-17916 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17916?

CVE-2018-17916 primarily affects Aveva Indusoft Web Studio. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-17916?

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-2018-17916 published?

CVE-2018-17916 was published on 2018-11-02 and last updated on 2026-06-17.

CVE-2018-17916

CVE-2018-17916 is a critical-severity vulnerability in Aveva Indusoft Web Studio with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Aveva Indusoft Web Studio
Published: 2018-11-02
Last modified: 2026-06-17

Description

InduSoft Web Studio versions prior to 8.1 SP2, and InTouch Edge HMI (formerly InTouch Machine Edition) versions prior to 2017 SP2. A remote attacker could send a carefully crafted packet to exploit a stack-based buffer overflow vulnerability during tag, alarm, or event related actions such as read and write, with potential for code to be executed. If InduSoft Web Studio remote communication security was not enabled, or a password was left blank, a remote user could send a carefully crafted packet to invoke an arbitrary process, with potential for code to be executed. The code would be executed under the privileges of the InduSoft Web Studio or InTouch Edge HMI runtime and could lead to a compromise of the InduSoft Web Studio or InTouch Edge HMI server machine.

Frequently asked questions

What is CVE-2018-17916?: InduSoft Web Studio versions prior to 8.1 SP2, and InTouch Edge HMI (formerly InTouch Machine Edition) versions prior to 2017 SP2. A remote attacker could send a carefully crafted packet to exploit a stack-based buffer overflow vulnerability during tag, alarm, or event related actions such as read and write, with potential for code to be executed. If InduSoft Web Studio remote communication security was not enabled, or a password was left blank, a remote user could send a carefully crafted packet to invoke an arbitrary process, with potential for code to be executed. The code would be executed under the privileges of the InduSoft Web Studio or InTouch Edge HMI runtime and could lead to a compromise of the InduSoft Web Studio or InTouch Edge HMI server machine.
How severe is CVE-2018-17916?: CVE-2018-17916 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-2018-17916 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17916?: CVE-2018-17916 primarily affects Aveva Indusoft Web Studio. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-17916?: 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-2018-17916 published?: CVE-2018-17916 was published on 2018-11-02 and last updated on 2026-06-17.

References

Affected products (30)

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:edge:8.1:-:*:*:*:*:*:*
cpe:2.3:a:aveva:edge:8.1:sp1:*:*:*:*:*:*
cpe:2.3:a:aveva:intouch_machine_edition_2014:r2:*:*:*:*:*:*:*

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