Multiple vulnerabilities in Microsoft Office
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-0991 CVE-2020-0760 |
| CWE-ID | CWE-119 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Microsoft Office Client/Desktop applications / Office applications Microsoft Excel Client/Desktop applications / Office applications Microsoft PowerPoint Client/Desktop applications / Office applications Microsoft Visio Client/Desktop applications / Office applications Microsoft Word Client/Desktop applications / Office applications Microsoft Access Client/Desktop applications / Office applications Microsoft Project Client/Desktop applications / Office applications Microsoft Outlook Client/Desktop applications / Office applications Microsoft Publisher Client/Desktop applications / Office applications Microsoft Project Server Web applications / Other software |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU26851
Risk: High
CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2020-0991
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Microsoft Office software. A remote attacker can send a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsMicrosoft Office: 365 ProPlus - 2019
CPE2.3- cpe:2.3:a:microsoft:microsoft_office:365_ProPlus:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:2010_Service_Pack_2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:2013_RT:*:*:*:*:*:*:*
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0991
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Input validation error
EUVDB-ID: #VU26852
Risk: High
CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2020-0760
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to the Microsoft Office improperly loads arbitrary type libraries. A remote attacker can trick a victim to open a specially crafted Office document and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMicrosoft Office: 365 ProPlus - 2019
Microsoft Excel: 2010 - 2016
Microsoft PowerPoint: 2010 Service Pack 2 - 2016
Microsoft Visio: 2010 - 2016
Microsoft Word: 2010 - 2016
Microsoft Access: 2010 Service Pack 2 - 2016
Microsoft Project: 2016
Microsoft Outlook: 2010 Service Pack 2 - 2016
Microsoft Project Server: 2010 Service Pack 2
Microsoft Publisher: 2010
CPE2.3- cpe:2.3:a:microsoft:microsoft_office:365_ProPlus:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:2010_Service_Pack_2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:2013_RT:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_excel:*:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:microsoft_excel:2013_RT_Service_Pack_1:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:powerpoint:2010_Service_Pack_2:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:microsoft_visio:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_word:*:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:microsoft_access:2010_Service_Pack_2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_project:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_outlook:2010_Service_Pack_2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_project_server:2010 Service Pack 2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_publisher:*:*:*:*:*:*:*:*
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0760
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
