Multiple vulnerabilities in Microsoft Windows Services for NFS ONCRPC XDR Driver
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2021-36933 CVE-2021-26432 CVE-2021-26433 CVE-2021-36926 CVE-2021-36932 |
| CWE-ID | CWE-200 CWE-94 |
| 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 5 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU55707
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-36933
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the Windows Services for NFS ONCRPC XDR Driver. A remote attacker can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 8.1 - 10 S
Windows Server: 2012 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36933
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.
2) Code Injection
EUVDB-ID: #VU55711
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-26432
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the Windows Services for NFS ONCRPC XDR Driver. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 8.1 - 10 S
Windows Server: 2012 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26432
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.
3) Information disclosure
EUVDB-ID: #VU55710
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-26433
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the Windows Services for NFS ONCRPC XDR Driver. A remote attacker can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 8.1 - 10 S
Windows Server: 2012 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26433
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.
4) Information disclosure
EUVDB-ID: #VU55709
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-36926
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the Windows Services for NFS ONCRPC XDR Driver. A remote attacker can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 8.1 - 10 S
Windows Server: 2012 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36926
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.
5) Information disclosure
EUVDB-ID: #VU55708
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-36932
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the Windows Services for NFS ONCRPC XDR Driver. A remote attacker can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 8.1 - 10 S
Windows Server: 2012 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36932
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.
