How severe is CVE-2018-7793?

CVE-2018-7793 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2018-7793 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7793?

CVE-2018-7793 primarily affects Schneider-electric Foxboro Dcs. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-7793?

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

When was CVE-2018-7793 published?

CVE-2018-7793 was published on 2018-12-24 and last updated on 2026-06-17.

CVE-2018-7793

CVE-2018-7793 is a high-severity vulnerability in Schneider-electric Foxboro Dcs with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.7)
CVSS v2: 4.6
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Schneider-electric Foxboro Dcs
Published: 2018-12-24
Last modified: 2026-06-17

Description

A Credential Management vulnerability exists in FoxView HMI SCADA (All Foxboro DCS, Foxboro Evo, and IA Series versions prior to Foxboro DCS Control Core Services 9.4 (CCS 9.4) and FoxView 10.5.) which could cause unauthorized disclosure, modification, or disruption in service when the password is modified without permission.

Frequently asked questions

What is CVE-2018-7793?: A Credential Management vulnerability exists in FoxView HMI SCADA (All Foxboro DCS, Foxboro Evo, and IA Series versions prior to Foxboro DCS Control Core Services 9.4 (CCS 9.4) and FoxView 10.5.) which could cause unauthorized disclosure, modification, or disruption in service when the password is modified without permission.
How severe is CVE-2018-7793?: CVE-2018-7793 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2018-7793 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7793?: CVE-2018-7793 primarily affects Schneider-electric Foxboro Dcs. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-7793?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-7793 published?: CVE-2018-7793 was published on 2018-12-24 and last updated on 2026-06-17.

References

https://www.schneider-electric.com/en/download/document/SEVD-2018-353-03/

Affected products (4)

cpe:2.3:a:schneider-electric:foxboro_dcs:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:foxboro_evo:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:foxview:10.5:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:ia_series:*:*:*:*:*:*:*:*