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 all…

published 2018-08-21 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-6677

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-18-228-01 updated 2018-08-16 cvss 9.6

Emerson DeltaV DCS Workstations

Emerson DeltaV 11.3.1, 12.3.1, 13.3.0, 13.3.1 R5
affected: vendor fix, mitigation guardian.emersonprocess.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

Affected products

ICS-CERT DeltaV

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

ics-cert.us-cert.gov /advisories/ICSA-18-228-01
third-party-advisory, us-government-resource
securityfocus.com /bid/105105
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-14793
NVD CVE-2018-14793

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary