CVE-2024-42512PublishedWithdrawn

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.

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

CVE-2024-42512

No KEV entry is attached to this observation; this is not evidence that exploitation is absent.

FIRST EPSS: 0.59 % · percentile 48.67 % · scored 8 Nov 2026.

Observed 08 Nov 2026 15:12:21 UTC · Complete immutable risk JSON

cve-program · CVE-2024-42512

Published

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.

Source published: 10 Feb 2025 00:00:00 UTC
Source modified: 15 Oct 2026 00:48:21 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

euvd · EUVD-2025-5035

Published

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.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Feb 10, 2025, 12:00:00 AM

dateUpdated: Oct 15, 2026, 12:48:21 AM

4 related source bulletins · separate from aliases

NCSC-2025-0077: Kwetsbaarheden verholpen in Siemens producten

CVE-2024-1305 · CVE-2024-4877 · CVE-2024-5594 · CVE-2024-24974 · CVE-2024-27459 · CVE-2024-27903 · CVE-2024-28882 · CVE-2024-41046 · CVE-2024-41049 · CVE-2024-41055 · CVE-2024-42154 · CVE-2024-42161 · CVE-2024-42512 · CVE-2024-42513 · CVE-2024-52285 · CVE-2024-56181 · CVE-2024-56182 · CVE-2024-56336 · CVE-2025-23384 · CVE-2025-23396 · CVE-2025-23397 · CVE-2025-23398 · CVE-2025-23399 · CVE-2025-23400 · CVE-2025-23401 · CVE-2025-23402 · CVE-2025-25266 · CVE-2025-25267 · CVE-2025-27392 · CVE-2025-27393 · CVE-2025-27394 · CVE-2025-27395 · CVE-2025-27396 · CVE-2025-27397 · CVE-2025-27398 · CVE-2025-27438 · CVE-2025-27493 · CVE-2025-27494

SSA-858251: SSA-858251: Authentication Bypass Vulnerabilities in OPC UA

CVE-2024-42512 · CVE-2024-42513

ICSA-25-072-09: Siemens OPC UA

CVE-2024-42512 · CVE-2024-42513

WID-SEC-W-2025-0298: OPC Foundation OPC UA .NET Standard Stack: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen

CVE-2024-42512 · CVE-2024-42513

Source published: Feb 10, 2025, 12:00:00 AM (timezone not stated)
Source modified: Oct 15, 2026, 12:48:21 AM (timezone not stated)
Observed here: 9 Nov 2026 01:04:49 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

nvd · CVE-2024-42512

Published

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.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-208

Original publisher date fields

published: 2025-02-10T19:15:37.910

lastModified: 2026-10-15T01:18:46.967

1 source CPE criteria · context only

cpe:2.3:a:opcfoundation:ua_.net_standard_stack:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 10 Feb 2025 19:15:37 UTC
Source modified: 15 Oct 2026 01:18:46 UTC
Observed here: 25 Oct 2026 00:17:28 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 · Secondary · 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

osv · GHSA-h958-fxgg-g7w3

Published

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.

Source published: 3 Mar 2025 20:10:59 UTC
Source modified: 27 May 2025 18:55:12 UTC
Observed here: 23 Oct 2026 16:01:25 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Publisher rating · MODERATE

osv · GHSA-qv5f-57gw-vx3h

Withdrawn

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-h958-fxgg-g7w3. This link is maintained to preserve external references. ## Original Description 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.

Source published: 10 Feb 2025 21:31:37 UTC
Source modified: 3 Mar 2025 20:43:43 UTC
Observed here: 23 Oct 2026 16:01:25 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Publisher rating · HIGH