What is CVE-2021-26264?

CVE-2021-26264 is a medium-severity vulnerability in Emerson Deltav Distributed Control System, classified under Missing Authentication for Critical Function. CVSS score: 6.1/10. Published 2022-01-28.

How severe is CVE-2021-26264?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Auth bypass in Emerson Deltav Distributed Control System

CVE-2021-26264

A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.

Vulnerability class: Broken Authentication

EPSS: 0.002 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Emerson Deltav_distributed_control_system
Emerson Deltav_workstation
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC, Mitigation)

Frequently asked questions

What is CVE-2021-26264?: CVE-2021-26264 is a medium-severity vulnerability in Emerson Deltav Distributed Control System, classified under Missing Authentication for Critical Function. CVSS score: 6.1/10. Published 2022-01-28.
How severe is CVE-2021-26264?: Medium severity. CVSS v3 base score is 6.1 out of 10.