High severity · published Oct 10, 2023
CVE-2023-36435
Microsoft QUIC Denial of Service Vulnerability
7.5
CVSS
5.7%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.7% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
.net · Microsoft
7.0.0 through 7.0.12 · source: NVD
W1
Windows 11 21h2 · Microsoft
before 10.0.22000.2538 · source: NVD
W1
Windows 11 22h2 · Microsoft
before 10.0.22621.2428 · source: NVD
WS
Windows Server 2022 · Microsoft
All versions, or not specified · source: NVD
Affected product
NE
.net
Microsoft
More from .net
9.8
CVE-2026-111497
Out-of-Bounds Write in Google Brotli Decoder
7.5
CVE-2023-44487
HTTP/2 Rapid Reset Attack Vulnerability
7.5
CVE-2023-38180
.NET and Visual Studio Denial of Service Vulnerability
9.8
CVE-2026-47304
.NET Security Feature Bypass Vulnerability
9.8
CVE-2024-43498
.NET and Visual Studio Remote Code Execution Vulnerability