CVE-2021-22289

criticalpriority · track · 39EPSS 0.008 · 56 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.79% (56th) EPSS

CVSS 9.8 · critical

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Improper Input Validation vulnerability in the project upload mechanism in B&R Automation Studio version >=4.0 may allow an unauthenticated network attacker to execute code.

remediations

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

No vendor fix yet; a mitigation is available.

MitigationAutomation Studio 4cisa_csaf_ot
Configure password protection when using the “Backing up project source files on the target system” feature. Use strong passwords.

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 · 8.3–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.08.3highCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/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

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · cybersecurity@ch.abb.comexploitability 1.6 · impact 6

v3.19criticalCVSS:3.1/AV:N/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-20USprimaryCWE-20USCWE-20US

affected products (5)

Products and version ranges known to be affected.

Automation Studio 4: All versionsall versionscisa_csaf_otUS
B&R Industrial Automation Automation Studio 4all versionscisa_csaf_otUS
B&R Industrial Automation Automation Studio4 → unspecifiedenisa_euvdEU
B&R Industrial Automation Automation Studio 4all versionsfstec_bduRU
br-automation studio≥ 4.0nvdUScpe:2.3:a:br-automation:studio:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-22-228-05B&R Industrial Automation Automation Studio 42022-08-16icsa · cisa_csaf_otUS
An attacker could leverage this vulnerability to execute code within the context of the affected system, which may threaten the integrity and confidentiality of data or cause a denial-of-service condition.

also known as (5)

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 2022-08-11modified 2026-06-17

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+25193 more

references (6)

External citations — patches, advisories, analysis.

scry

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