CVE-2018-8840
No exploitation reported by the sources we read.
- Published2018-04-18
- WeaknessCWE-119 · CWE-121
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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.
Timeline
dates in UTC- 2018-04-1820:29CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-8840?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-8840?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.1 | ≤ 8.1 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.1 | ≤ 8.1 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Schneider Electric InduSoft Web Studio and InTouch Machine Edition
InTouch Machine Edition 2017: v8.1 and prior versions · InduSoft Web Studio: v8.1 and prior versions
Fix
- Vendor fix CISA ICSA-18-107-01 · 2 productsUsers using InduSoft Web Studio v8.1 or prior versions are affected and should upgrade and apply InduSoft Web Studio v8.1 SP1 as soon as possible.
- Mitigation from the vendor CISA ICSA-18-107-01 · 2 productsUsers using InTouch Machine Edition 2017 v8.1 or prior versions are affected and should upgrade and apply InTouch Machine Edition 2017 v8.1 SP1 as soon as possible.
- Mitigation from the vendor CISA ICSA-18-107-01 · 2 productsSchneider Electric Software, LLC has also released Security Bulletin LFSEC00000125 that can be found at:
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.09.8read 2026-10-23
- NVDCVSS 2.010read 2026-10-23
- CNAweakness (CWE)CWE-121read 2026-10-23
- NVDweakness (CWE)CWE-119read 2026-10-23
- FIRST EPSSEPSS score8.6 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2018-04-18
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2018-8840?
Is CVE-2018-8840 actively exploited?
What is the CVSS score for CVE-2018-8840?
Hear about the next vulnerability in your software
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
No credit card required · No monthly cap on website lookups · 250 API requests/month
Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
- Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.
Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.