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CVE-2024-42512

Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled.

Published: Feb 10, 2025Updated: Sep 29, 2025 Sources: CVE List NVD GHSA BDU csafCWE-208
8.6HIGH
NVD MITRE
EPSS Score
0.6%
Top 55.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

The products listed below contain two authentication bypass vulnerabilities that could allow an attacker to gain access to the data managed by the server. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-208

Affected Products

OPC Foundation
oss-projectaka opc ua
OPC UA .NET StandardOn-prem
ICS / OT / IoT / industrial-network
NuGet
package-ecosystem
OPCFoundation.NetStandard.Opc.Ua.Core
OSS Libraries
opcfoundation
oss-project
ua .net standard stackMixed
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2024-42512?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://nvd.nist.gov/vuln/detail/CVE-2024-42512
nvd.nist.gov
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-42512.pdf
files.opcfoundation.org
https://cert-portal.siemens.com/productcert/csaf/ssa-858251.json
cert-portal.siemens.com
and 13 more references View all →

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