High severity · published Aug 8, 2023
CVE-2023-35391
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
7.5
CVSS
1.9%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
.net · Microsoft
6.0.0 before 6.0.21; 7.0.0 before 7.0.10 · source: NVD
AC
Asp.net Core · Microsoft
2.1 before 2.1.40 · source: NVD
VS
Visual Studio 2022 · Microsoft
17.2.0 before 17.2.18; 17.4.0 before 17.4.10; 17.6.0 before 17.6.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-35391
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-35391
Patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391
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