Is CVE-2023-35391 in the CISA KEV catalog?

No. CVE-2023-35391 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-35391?

CVE-2023-35391 has a CVSS v3 base score of 6.2 (MEDIUM).

What is the EPSS score for CVE-2023-35391?

CVE-2023-35391 has an EPSS score of 1.94% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-35391?

Upgrade Microsoft .NET SDK 6.0 to 7.0.10 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2023-35391

MEDIUMEPSS 78th pctl

6.2

CVSS v3

NVD

Description

ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

How to fix

Remediation Available

Microsoft .NET SDK 6.0Windows application

Affected:7.0.0 7.0.10Fixed in:7.0.10Microsoft Corporation

Affected:6.0.0 6.0.21Fixed in:6.0.21Microsoft Corporation

Microsoft .NET SDK 7.0Windows application

Affected:6.0.0 6.0.21Fixed in:6.0.21Microsoft Corporation

Affected:7.0.0 7.0.10Fixed in:7.0.10Microsoft Corporation

Microsoft .NET SDK 8.0Windows application

Affected:6.0.0 6.0.21Fixed in:6.0.21Microsoft Corporation

Affected:7.0.0 7.0.10Fixed in:7.0.10Microsoft Corporation

Microsoft .NET SDK 9.0Windows application

Affected:7.0.0 7.0.10Fixed in:7.0.10Microsoft Corporation

Affected:6.0.0 6.0.21Fixed in:6.0.21Microsoft Corporation

Microsoft ASP.NET Core Hosting Bundle 6.0Windows application

Affected:2.1 2.1.40Fixed in:2.1.40Microsoft Corporation

Microsoft ASP.NET Core Hosting Bundle 7.0Windows application

Affected:2.1 2.1.40Fixed in:2.1.40Microsoft Corporation

Microsoft ASP.NET Core Hosting Bundle 8.0Windows application

Affected:2.1 2.1.40Fixed in:2.1.40Microsoft Corporation

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.94%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Patch1

msrc.microsoft.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.