High severity · published May 20, 2022
CVE-2022-30551
OPC UA Legacy Java Stack 2022-04-01 allows a remote attacker to cause a server to stop processing messages by sending crafted messages that exhaust available resources
7.5
CVSS
2.1%
EPSS
No
On KEV
Description
OPC UA Legacy Java Stack 2022-04-01 allows a remote attacker to cause a server to stop processing messages by sending crafted messages that exhaust available resources.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UA
Ua-java · Opcfoundation
2022-04-01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-30551
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-30551
Patch
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-30551.pdf
Product
https://github.com/OPCFoundation/UA-Java-Legacy
Vendor Advisory
https://opcfoundation.org
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