CVE-2023-35391 : ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

Published 2023-08-08 19:15:10

Updated 2023-11-06 23:15:10

View at NVD, CVE.org

Vulnerability category: Information leak

Products affected by CVE-2023-35391

Microsoft » Asp.net Core
Versions from including (>=) 2.1 and before (<) 2.1.40
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
Matching versions
Microsoft » .net
Versions from including (>=) 6.0.0 and before (<) 6.0.21
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Matching versions
Microsoft » .net
Versions from including (>=) 7.0.0 and before (<) 7.0.10
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2022
Versions from including (>=) 17.4.0 and before (<) 17.4.10
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2022
Versions from including (>=) 17.2.0 and before (<) 17.2.18
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2022
Versions from including (>=) 17.6.0 and before (<) 17.6.6
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.27%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 68 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
7.1	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	1.8	5.2	Microsoft Corporation
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None
6.2	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	2.5	3.6	Microsoft Corporation
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391

CVE-2023-35391 - Security Update Guide - Microsoft - ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
Patch;Vendor Advisory

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