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CVE-2024-42513

Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when using HTTPS endpoints.

Published: Feb 10, 2025Updated: Oct 2, 2025 Sources: CVE List NVD GHSA csafCWE-305
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.5%
Top 60.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch 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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-305

Affected Products

n/an/a
ua .net standard stackopcfoundation
Mixed
OSS Libraries / generic-library
OPCFoundation.NetStandard.Opc.Ua.Bindings.HttpsNuGetOSS Libraries
opcfoundationoss-projectOSS Librariesaka opcfoundation
nugetpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://cert-portal.siemens.com/productcert/csaf/ssa-858251.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-858251.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-072-09.json
raw.githubusercontent.com
and 12 more references View all →

Timeline

Published
Feb 10, 2025
Last Updated
Oct 2, 2025

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