Skip to main content

Net CVE-2023-36558

MEDIUM
2023-11-14 secure@microsoft.com
5.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Impact

CVSS score of 5.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 1.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

ASP.NET Core Security Feature Bypass Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

nuget microsoft.aspnetcore.components fix: 6.0.25, 7.0.14, 8.0.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in nuget

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Affected products include: Microsoft .Net, Microsoft Asp.Net Core, Microsoft Visual Studio 2022.

Know when Net gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

ASP.NET Core Security Feature Bypass Vulnerability

Threat Intelligence Overview

EPSS Score
1.1%
Top 39% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

29
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:8.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:8.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:asp.net_core:8.0.0:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*

More in Net

View all
CVE-2023-44487 HIGH POC
7.5 Oct 10

Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resour

CVE-2026-111497 CRITICAL POC
9.2 Oct 21

Remote code execution is possible in Node.js releases that bundle a vulnerable Brotli decoder: a malformed brotli-compre

CVE-2023-38180 HIGH
7.5 Aug 08

.NET and Visual Studio Denial of Service Vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely e

CVE-2026-69439 HIGH POC
8.8 Sep 08

Heap-based buffer overflow (CWE-122) in Microsoft .NET and Visual Studio allows a network-based unauthenticated attacker

CVE-2026-71328 HIGH POC
8.8 Sep 08

Heap-based buffer overflow in Microsoft Visual Studio 2022 and 2026 enables network-delivered remote code execution when

CVE-2026-62886 HIGH POC
7.8 Aug 11

Privilege escalation in Microsoft .NET runtimes (8.0, 9.0, and 10.0) and Microsoft Visual Studio 2022 and 2026 results f

CVE-2026-62871 HIGH POC
7.8 Aug 11

Heap-based buffer overflow (CWE-122) in Microsoft .NET enables local code execution across all actively supported .NET r

CVE-2026-70354 HIGH POC
7.8 Aug 11

Local code execution via out-of-bounds write in Microsoft .NET allows an unauthenticated local attacker to achieve full

CVE-2026-62909 HIGH POC
7.8 Aug 11

Local privilege escalation in Microsoft .NET (versions 8.0, 9.0, and 10.0) and Microsoft Visual Studio 2022/2026 allows

CVE-2026-62901 HIGH POC
7.5 Aug 11

Denial-of-service in Microsoft .NET runtimes and Visual Studio allows unauthenticated remote attackers to crash or hang

CVE-2026-62897 HIGH POC
7.0 Aug 11

Integer overflow in Microsoft .NET Framework and modern .NET runtimes enables local code execution with full process com

CVE-2026-62898 HIGH POC
7.5 Aug 11

Use-after-free memory corruption in Microsoft's QUIC protocol implementation (MsQuic) exposes sensitive heap memory to u

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy