Remote code execution in Valmet DNA before Collection 2021

published 2022-02-16 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13513

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 67%
public exploits: 0; none known

A remote code execution vulnerability affecting a Valmet DNA service listening on TCP port 1517, allows an attacker to execute commands with SYSTEM privileges This issue affects: Valmet DNA versions from Collection 2012 until Collection 2021.

Patch / fix

fixed in 1

Valmet DNA Valmet DNA Collection 2021

Vendor advisories

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

cisa ICSA-22-102-01 updated 2022-04-12 cvss 8.8

Valmet DNA

Valmet DNA >=Collection 2012, <= Collection 2021
affected: mitigation “Update to the latest version. Contact Valmet customer service to obtain the update.” valmet.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

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	8.3	AV:A/AC:L/Au:N/C:C/I:C/A:C

Affected products

Valmet DNA Valmet DNA

Classification

Weakness

CWE-305 Authentication Bypass by Primary Weakness
CWE-209 Generation of Error Message Containing Sensitive Information
CWE-272 Least Privilege Violation
CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-330 Use of Insufficiently Random Values

References

valmet.com /about-us/research-and-development/vulnerabilityadvisories/
vendor-advisory
nozominetworks.com /labs/vulnerability-advisories/cve-2021-26726/
third-party-advisory

Sources

CVE List CVE-2021-26726
NVD CVE-2021-26726

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