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CVE-2021-22289

31
FAUCET Score

CVE-2021-22289 describes an Improper Input Validation vulnerability in the project upload mechanism of B&R Automation Studio versions 4.0 and later. This critical vulnerability, with a CVSS score of 9.8, allows an unauthenticated network attacker to execute arbitrary code with high impact on confidentiality, integrity, and availability. Despite its severity, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog. Community discussion and media coverage are currently minimal, indicating low public awareness and no evidence of active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0CPE matchmatch criteria
cpe:2.3:a:br-automation:studio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 29th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

br-automation.com / downloads_br_productcatalogue/assets/1640529306294-en-original-1.0.pdf
Vendor Advisory