CVE-2022-29957

Name: CVE-2022-29957
Creator: NVD / NIST
Published: 2022-07-26T22:15:10.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2022-29957 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The Emerson DeltaV Distributed Control System (DCS) through 2022-04-29 mishandles authentication. It utilizes several proprietary protocols for a wide variety of functionality. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

The Emerson DeltaV Distributed Control System (DCS) through 2022-04-29 mishandles authentication. It utilizes several proprietary protocols for a wide variety of functionality. These protocols include Firmware upgrade (18508/TCP, 18518/TCP); Plug-and-Play (18510/UDP); Hawk services (18507/UDP); Management (18519/TCP); Cold restart (18512/UDP); SIS communications (12345/TCP); and Wireless Gateway Protocol (18515/UDP). None of these protocols have any authentication features, allowing any attacker capable of communicating with the ports in question to invoke (a subset of) desired functionality.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Emerson	Deltav Distributed Control System	<= 2022-04-29

References

https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-03Third Party Advisory, US Government Resource
https://www.forescout.com/blog/Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-03Third Party Advisory, US Government Resource
https://www.forescout.com/blog/Third Party Advisory

Timeline

Published: Jul 26, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29957?

How severe is CVE-2022-29957?

CVE-2022-29957 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29957?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29957?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST