THREATPORT/VULNERABILITY/CVE-2018-8840
CRITICAL SEVERITY

CVE-2018-8840

Web Studio vulnerability

CVSS
9.8
EPSS
8.4%
EPSS pct
94th
Exploited
No known
A remote attacker could send a carefully crafted packet in InduSoft Web Studio v8.1 and prior versions, and/or InTouch Machine Edition 2017 v8.1 and prior versions during a tag, alarm, or event related action such as read and write, which may allow remote code execution.
Affected vendor
Indusoft
Affected product
Web Studio
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-121 — Stack-based Buffer Overflow
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2018-04-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2018-8840

  • Confirm whether Indusoft Web Studio is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-8840.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-8840

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-8840 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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