Security Update for Microsoft Office to Address Remote Code Execution
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2015-6040 CVE-2015-6118 CVE-2015-6122 CVE-2015-6124 CVE-2015-6172 CVE-2015-6177 |
| CWE-ID | CWE-119 CWE-20 |
| Exploitation vector | Network |
| Public exploit | Vulnerability #5 is being exploited in the wild. |
| Vulnerable software |
Microsoft Excel Client/Desktop applications / Office applications Microsoft Excel for Mac Client/Desktop applications / Office applications Microsoft Office for Mac Client/Desktop applications / Office applications Microsoft Office Client/Desktop applications / Office applications Microsoft Word Client/Desktop applications / Office applications |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 6 vulnerabilities.
1) Memory corruption
EUVDB-ID: #VU6176
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-2015-6040
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to boundary error when handling malicious Excel files. A remote attacker can create a specially crafted .xls file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.
Install updates from Microsoft website.
Vulnerable software versionsMicrosoft Excel: 2007 - 2010
Microsoft Excel for Mac: 2011 - 2016
Microsoft Office for Mac: 2011 - 2016
Microsoft Office: 2007 - 2010
CPE2.3- cpe:2.3:a:microsoft:microsoft_excel:*:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:microsoft_excel_for_mac:2011:*:*:*:*:microsoft_office_for_mac:*:*
- cpe:2.3:a:microsoft:microsoft_excel_for_mac:2016:*:*:*:*:microsoft_office_for_mac:*:*
- cpe:2.3:a:microsoft:microsoft_office_for_mac:2011:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office_for_mac:2016:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:*
https://technet.microsoft.com/en-us/library/security/ms15-131.aspx
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) Memory corruption
EUVDB-ID: #VU6177
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-2015-6118
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to boundary error when handling malicious Word files. A remote attacker can create a specially crafted .doc file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.
Install updates from Microsoft website.
Vulnerable software versionsMicrosoft Word: 2007 - 2010
Microsoft Office: 2007 - 2010
CPE2.3 External linkshttps://technet.microsoft.com/en-us/library/security/ms15-131.aspx
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.
3) Memory corruption
EUVDB-ID: #VU6178
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-2015-6122
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to boundary error when handling malicious Excel files. A remote attacker can create a specially crafted .xls file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.
Install updates from Microsoft website.
Vulnerable software versionsMicrosoft Excel: 2007 - 2010
Microsoft Excel for Mac: 2011
Microsoft Office for Mac: 2011
Microsoft Office: 2007 - 2010
CPE2.3- cpe:2.3:a:microsoft:microsoft_excel_for_mac:2011:*:*:*:*:microsoft_office_for_mac:*:*
- cpe:2.3:a:microsoft:microsoft_office_for_mac:2011:*:*:*:*:*:*:*
https://technet.microsoft.com/en-us/library/security/ms15-131.aspx
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.
4) Memory corruption
EUVDB-ID: #VU6179
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-2015-6124
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to boundary error when handling malicious Word files. A remote attacker can create a specially crafted .doc file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.
Install updates from Microsoft website.
Vulnerable software versionsMicrosoft Word: 2007 - 2013
Microsoft Office: 2007 - 2013
CPE2.3 External linkshttps://technet.microsoft.com/en-us/library/security/ms15-131.aspx
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.
5) Improper input validation
EUVDB-ID: #VU6175
Risk: High
CVSSv4.0: 8.4 [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:A/U:Amber]
CVE-ID: CVE-2015-6172
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to an error when handling malicious Word files. A remote attacker can create a specially crafted .doc file, trick the victim into opening it and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.
Install updates from Microsoft website.
Vulnerable software versionsMicrosoft Word: 2007 - 2016
Microsoft Office: 2007 - 2016
CPE2.3- cpe:2.3:a:microsoft:microsoft_word:2013_RT_Service_Pack_1:*:*:*:*:microsoft_office:*:*
- cpe:2.3:a:microsoft:microsoft_office:2013_RT:*:*:*:*:*:*:*
https://technet.microsoft.com/en-us/library/security/ms15-131.aspx
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?
Yes. This vulnerability is being exploited in the wild.
6) Memory corruption
EUVDB-ID: #VU4810
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-2015-6177
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to boundary error when handling malicious Excel files. A remote attacker can create a specially crafted .xls file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.
Install updates from Microsoft website.
Vulnerable software versionsMicrosoft Excel: 2007
Microsoft Office: 2007
CPE2.3https://technet.microsoft.com/en-us/library/security/ms15-131.aspx
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.
