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Full vulnerability report · 2023
CVE-2023-33170High confidence

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

Microsoft · Microsoft Visual Studio 2022 version 17.2

8.1HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-341067 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-341067: Multiple vulnerabilities in third-party components in ST7 ScadaConnect before V1.1
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • ST7 ScadaConnect (6NH7997-5DA10-0AA0)
Summary
ASP.NET and Visual Studio Security Feature Bypass Vulnerability
Remediation
Update to V1.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-1922

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

What

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-362 ↗

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'). The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-362
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-1722Microsoft Developer Tools: Mehrere Schwachstellen

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Microsoft Visual Studio 2022, Microsoft Visual Studio Code und Microsoft .NET Framework ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode auszuführen, Sicherheitsvorkehrungen zu umgehen oder Dateien zu manipulieren.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0478Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2023-28319 Référence CVE CVE-2023-28484 https://www.cve.org/CVERecord?id=CVE-2023-28484 Référence CVE CVE-2023-29331 https://www.cve.org/CVERecord?id=CVE-2023-29331 Référence CVE CVE-2023-29469 https://www.cve.org/CVERecord?id=CVE-2023-29469 Référence CVE CVE-2023-32032 https://www.cve.org/CVERecord?id=CVE-2023-32032 Référence CVE CVE-2023-33126 https://www.cve.org/CVERecord?id=CVE-2023-33126 Référence CVE CVE-2023-33127 https://www.cve.org/CVERecord?id=CVE-2023-33127 Référence CVE CVE-2023-33128 https://www.cve.org/CVERecord?id=CVE-2023-33128 Référence CVE CVE-2023-33135 https://www.cve.org/CVERecord?id=CVE-2023-33135 Référence CVE CVE-2023-33170 https://www.cve.org/CVERecord?id=CVE-2023-33170 Référence CVE CVE-2023-3446 https://www.cve.org/CVERecord?id=CVE-2023-3446 Référence CVE CVE-2023-35390 https://www.cve.org/CVERecord?id=CVE-2023-35390 Référence CVE CVE-2023-35391 https://www.cve.org/CVERecord?id=CVE-2023-35391 Référence CVE CVE-2023-35788 https://www.cve.org/CVERecord?id=CVE-2023-35788 Référence CVE CVE-2023-35823 https://www.cve.org/CVERecord?id=CVE-2023-35823 Référence CVE CVE-2023-35824 https://www.cve.org/CVERecord?id=CVE-2023-35824 Référence CVE CVE-2023-35828 https://www.cve.org/CVERecord?id=CVE-2023-35828 Référence CVE CVE-2023-35829 https://www.cve.org/CVERecord?id=CV

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0536Multiples vulnérabilités dans les produits Microsoft

juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33153 Bulletin de sécurité Microsoft CVE-2023-33156 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33156 Bulletin de sécurité Microsoft CVE-2023-33158 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33158 Bulletin de sécurité Microsoft CVE-2023-33161 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33161 Bulletin de sécurité Microsoft CVE-2023-33162 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33162 Bulletin de sécurité Microsoft CVE-2023-33170 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33170 Bulletin de sécurité Microsoft CVE-2023-33171 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33171 Bulletin de sécurité Microsoft CVE-2023-35311 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35311 Bulletin de sécurité Microsoft CVE-2023-35333 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35333 Bulletin de sécurité Microsoft CVE-2023-35335 du 11 juillet 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35335 Bulletin de sécurité Micr

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0534Multiples vulnérabilités dans Microsoft .Net

De multiples vulnérabilités ont été corrigées dans Microsoft .Net. Elles permettent à un attaquant de provoquer un contournement de la fonctionnalité de sécurité et une élévation de privilèges.

Official advisory
NCSC-NL · Dutch · NCSC-2024-0246Kwetsbaarheden verholpen in Siemens producten

De kwetsbaarheden stellen een kwaadwillende mogelijk in staat aanvallen uit te voeren die kunnen leiden tot de volgende categorieën schade: - Denial-of-Service (DoS) - Manipulatie van gegevens - Omzeilen van beveiligingsmaatregel - (Remote) code execution (Administrator/Root rechten) - (Remote) code execution (Gebruikersrechten) - Toegang tot systeemgegevens - Verhoogde gebruikersrechten De kwaadwillende heeft hiervoor toegang nodig tot de productieomgeving. Het is goed gebruik een dergelijke omgeving niet publiek toegankelijk te hebben.

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
ST7 ScadaConnect (6NH7997-5DA10-0AA0)
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Update to V1.1 or later version
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 11 Jul 2023 · Last source change 28 May 2026, 17:49 UTC · CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-1922
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceOther authority
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2023-1922↗Vendor CSAF · Siemens ProductCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-33170 · cve.blacktree.nl