How severe is CVE-2018-14793?

CVE-2018-14793 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-14793 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14793?

CVE-2018-14793 primarily affects Emerson Deltav. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-14793?

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-2018-14793 published?

CVE-2018-14793 was published on 2018-08-21 and last updated on 2026-06-17.

CVE-2018-14793

CVE-2018-14793 is a high-severity vulnerability in Emerson Deltav with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Emerson Deltav
Published: 2018-08-21
Last modified: 2026-06-17

Description

DeltaV Versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, and R5 is vulnerable to a buffer overflow exploit through an open communication port to allow arbitrary code execution.

Frequently asked questions

What is CVE-2018-14793?: DeltaV Versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, and R5 is vulnerable to a buffer overflow exploit through an open communication port to allow arbitrary code execution.
How severe is CVE-2018-14793?: CVE-2018-14793 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-14793 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14793?: CVE-2018-14793 primarily affects Emerson Deltav. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-14793?: 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-2018-14793 published?: CVE-2018-14793 was published on 2018-08-21 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:emerson:deltav:11.3.1:*:*:*:*:*:*:*
cpe:2.3:a:emerson:deltav:12.3.1:*:*:*:*:*:*:*
cpe:2.3:a:emerson:deltav:13.3.0:*:*:*:*:*:*:*
cpe:2.3:a:emerson:deltav:13.3.1:*:*:*:*:*:*:*
cpe:2.3:a:emerson:deltav:r5:*:*:*:*:*:*:*

More vulnerabilities in Emerson Deltav

CVE-2018-14795 — High (CVSS 8.8): DeltaV Versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, and R5 is vulnerable due to improper path validation which may allow an…
CVE-2021-44463 — High (CVSS 8.1): Missing DLLs, if replaced by an insider, could allow an attacker to achieve local privilege escalation on the DeltaV…
CVE-2018-14797 — High (CVSS 7.8): Emerson DeltaV DCS versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, R5 allow a specially crafted DLL file to be placed in the…
CVE-2018-14791 — High (CVSS 7.8): Emerson DeltaV DCS versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, R5 may allow non-administrative users to change executable…
CVE-2012-1817 — High (CVSS 7.5): Buffer overflow in Emerson DeltaV and DeltaV Workstations 9.3.1, 10.3.1, 11.3, and 11.3.1 and DeltaV ProEssentials…
CVE-2012-1815 — High (CVSS 7.5): SQL injection vulnerability in Emerson DeltaV and DeltaV Workstations 9.3.1, 10.3.1, 11.3, and 11.3.1 and DeltaV…

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