High severity · published May 13, 2022
CVE-2021-22275
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…
8.6
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AR
Automation Runtime · Br-automation
before 4.91 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22275
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22275
Vendor Advisory
https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf
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