CVE-2021-22275
Denial of service vulnerability on Automation Runtime webserver
HIGH
8.6
CVSS Score
Published: May 13, 2022 at 02:23 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
1 product affected across 1 vendorAutomation Runtime
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Severity
HIGH8.6
Exploit prediction
EPSS 1.0%
Description
Buffer Overflow vulnerability in B&R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 4.91
Affected range stops below 4.91, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdfCVSS
8.6HIGHABB
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120
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