What is CVE-2023-1935?

CVE-2023-1935 is a critical-severity vulnerability in Emerson Dl8000, classified under Improper Authentication. CVSS score: 9.4/10. Published 2023-08-02.

How severe is CVE-2023-1935?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Auth bypass in Emerson Dl8000

CVE-2023-1935

ROC800-Series RTU devices are vulnerable to an authentication bypass, which could allow an attacker to gain unauthorized access to data or control of the device and cause a denial-of-service condition.

Vulnerability class: Broken Authentication

Published 2023-08-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.cisa.gov/news-events/ics-advisories/icsa-23-206-03 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2023-1935?: CVE-2023-1935 is a critical-severity vulnerability in Emerson Dl8000, classified under Improper Authentication. CVSS score: 9.4/10. Published 2023-08-02.
How severe is CVE-2023-1935?: Critical severity. CVSS v3 base score is 9.4 out of 10.