Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 3 |
CVE-ID | CVE-2023-21813 CVE-2023-21818 CVE-2023-21819 |
CWE-ID | CWE-20 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
EUVDB-ID: #VU72213
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-21813
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in Windows Secure Channel implementation. A remote attacker can pass specially crafted input to the system and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 10 - 11 22H2 10.0.22621.521
Windows Server: 2008 - 2022 20H2
External linkshttp://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21813
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU72212
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-21818
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in Windows Secure Channel implementation. A remote attacker can pass specially crafted input to the system and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 10 - 11 22H2 10.0.22621.521
Windows Server: 2008 - 2022 20H2
External linkshttp://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21818
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU72211
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-21819
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in Windows Secure Channel implementation. A remote attacker can pass specially crafted input to the system and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 10 20H2 10.0.19042.572 - 11 22H2 10.0.22621.521
Windows Server: 2019 10.0.17763.1 - 2022 20H2
External linkshttp://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.