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CVE-2018-7803

21
FAUCET Score

CVE-2018-7803 describes an improper check for unusual conditions in the Triconex TriStation Emulator V1.2.0, allowing a specially crafted packet to crash the emulator. This vulnerability, rated Medium (CVSS 5.9), has a network attack vector but high attack complexity, as it only affects the emulator in off-line mode and does not impact Triconex hardware or plant safety functions. There is no evidence of active exploitation, public exploit code, or significant community discussion, though it has received some media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.0CPE matchmatch criteria
cpe:2.3:a:schneider-electric:triconex_tristation_emulator:1.2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 26th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

schneider-electric.com / ww/en/download/document/SEVD-2019-071-03
Vendor Advisory