CVE-2021-26726

highpriority · track · 35OT risk · elevatedEPSS 0.011 · 67 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.15% (67th) EPSS

CVSS 8.3 · high

Is it mine?

6 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationValmet DNAcisa_csaf_ot
Ensure a properly configured firewall is in place to prevent unauthorized access from untrusted networks to the system.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v2.08.3highAV:A/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 6.5 · impact 10

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · prodsec@nozominetworks.comexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-330USprimaryCWE-209USCWE-272USCWE-305USCWE-319USCWE-326USCWE-78US

affected products (6)

Products and version ranges known to be affected.

Valmet DNA: Versions from Collection 2012 to Collection 2021all versionscisa_csaf_otUS
Valmet Valmet DNACollection 2012 | → Collection 2021cisa_csaf_otUS
Valmet DNA Valmet DNACollection 2012 → Collection 2021enisa_euvdEU
Valmet Oy Valmet Oy ACN CSall versionsfstec_bduRU
Valmet Oy Valmet System 2019all versionsfstec_bduRU
valmet dna2012 → 2021nvdUScpe:2.3:a:valmet:dna:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-22-102-01Valmet DNA2022-04-12icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow an attacker to execute commands remotely with system privileges.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2022-02-16modified 2026-06-17

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references (9)

External citations — patches, advisories, analysis.

scry

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