CVE-2024-42512

highpriority · track · 0EPSS 0.006 · 48 %ileDEEUNLRUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.60% (48th) EPSS
CVSS 7.4 · high
Is it mine?
133 products
Check your exposure
Who says so?
8 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

8.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–8.6

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · CISA US
v3.18.6highAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondary · ENISA EU
v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondaryexploitability 3.9 · impact 4.7
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV
v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · Siemens ProductCERT DE
v3.17.9highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)
v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondary · NCSC-NL NL
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-208USCWE-208USCWE-208USCWE-208USCWE-208USCWE-639USCWE-639US
05

affected products (133)

Products and version ranges known to be affected.

showing 20 of 133
06

advisories (5)

Vendor and ecosystem advisories describing this.

  • NCSC-2025-0077Kwetsbaarheden verholpen in Siemens productenNL2025-03-11csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als SCALANCE, SIMATIC, SINAMICS, SINEMA, SiPass, Teamcenter en Tecnomatix.

  • SSA-858251SSA-858251: Authentication Bypass Vulnerabilities in OPC UA2025-03-11csaf · siemens_psirtDE

    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 recommends specific countermeasures for products where fixes are not, or not yet available.

  • WID-SEC-W-2025-0298OPC Foundation OPC UA .NET Standard Stack: Mehrere Schwachstellen ermöglichen Umgehen von SicherheitsvorkehrungenDeutsch2025-02-09csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in OPC Foundation OPC UA .NET Standard Stack ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

  • GHSA-h958-fxgg-g7w3Security Update for the OPC UA .NET Standard Stack2025-03-03ghsa · osvUS

    This security update resolves a vulnerability in the OPC UA .NET Standard Stack that allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled. Note that the Basic128Rsa15 is disabled by default so most users will not be affected. When this patch is applied the Server closes all channels using the Basic128Rsa15 if an attack is detected. This introduces a DoS before any compromise can occur which is preferable to a compromise. To prevent this failure, applications must stop using Basic128Rsa15.

  • ICSA-25-072-09Siemens OPC UA2025-03-11icsa · cisa_csaf_otUS

    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.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otncsc_nlsiemens_psirtosvNVDCVE.orgMITRE
published 2025-02-10modified 2026-10-15
09

references (7)

External citations — patches, advisories, analysis.

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