Medium severity · published Feb 16, 2021
CVE-2020-29457
A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection
4.4
CVSS
0.3%
EPSS
No
On KEV
Description
A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UA
Ua-.netstandard · Opcfoundation
before 1.4.365.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29457
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29457
Third Party Advisory
https://github.com/OPCFoundation/UA-.NETStandard
Patch
https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf
Product
https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/
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