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Asp Net Core CVE-2018-8416

MEDIUM
2018-11-14 secure@microsoft.com
6.5
CVSS 3.0 · NVD
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Vulnerability Assessment

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. 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 7.3% exploitation probability (EPSS)

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AnalysisAI

A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka ".NET Core Tampering Vulnerability." This affects .NET Core 2.1. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, 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.netcore.app fix: 2.1.7

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

A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka ".NET Core Tampering Vulnerability." This affects .NET Core 2.1. Affected products include: Microsoft Asp.Net Core.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionNVD

A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka ".NET Core Tampering Vulnerability." This affects .NET Core 2.1.

Threat Intelligence Overview

EPSS Score
7.3%
Top 6% 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 7.3%
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +7
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:*
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-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-2025-26682 HIGH
7.5 Apr 08

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service ove

CVE-2025-55315 CRITICAL POC
9.9

ASP.NET Core Kestrel request smuggling allows a low-privileged network attacker (PR:L, no user interaction) to desynchro

CVE-2026-69304 MEDIUM POC
5.9 Sep 08

Decompression bomb (CWE-409) in ASP.NET Core allows unauthenticated remote attackers to exhaust server resources and den

CVE-2017-11879 HIGH
8.8 Nov 15

ASP.NET Core 2.0 allows an attacker to steal log-in session information such as cookies or authentication tokens via a s

CVE-2026-88092 CRITICAL
9.4 Oct 13

Request smuggling in the ASP.NET Core Kestrel HTTP/1 server lets a remote, unauthenticated attacker desynchronize HTTP r

CVE-2026-96230 HIGH
8.8 Oct 13

Cross-site scripting (CWE-79) in the ASP.NET Core Blazor WebAssembly Server hosting component allows an unauthenticated,

CVE-2026-70175 HIGH
8.1 Oct 13

Account takeover is possible in applications built on ASP.NET Core Identity because the framework's password-reset and e

CVE-2017-8700 HIGH
7.5 Nov 15

ASP.NET Core 1.0, 1.1, and 2.0 allow an attacker to bypass Cross-origin Resource Sharing (CORS) configurations and retri

CVE-2026-45591 HIGH
7.5 Jun 09

Remote denial of service in ASP.NET Core enables unauthenticated network attackers to exhaust server resources and disru

CVE-2021-43877 HIGH
8.8 Dec 15

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability

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