| Severity | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE ID | CVE-2007-0671 |
| CVSSv3 |
8.9 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C] |
| CWE ID |
CWE-119 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software |
Microsoft Office Microsoft Project Microsoft Office for Mac Microsoft Visio Word Viewer Excel Viewer |
| Vulnerable software versions |
Microsoft Office 2000 Service Pack 3 Microsoft Office XP Microsoft Office 2003 Microsoft Project 2000 Microsoft Project 2002 Microsoft Office for Mac 2004 Microsoft Visio 2002 Word Viewer 2003 Excel Viewer 2003 |
| Vendor URL | Microsoft |
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when handling malformed records in Excel files. A remote attacker can create a specially crafted Excel file, trick the victim into opening it and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in compromise of vulnerable system.
Note: this vulnerability is being actively exploited.
RemediationInstall the following patch:
Microsoft Office 2000 Service Pack 3 — Download the update (KB 929062)
Microsoft Office XP Service Pack 3 — Download the update (KB929063)
Microsoft Office 2003 Service Pack 2 — Download the update (KB929064)
Microsoft Project 2000 Service Release 1 — Download the update (KB929062)
Microsoft Project 2002 Service Pack 1 — Download the update (KB929063)
Microsoft Visio 2002 Service Pack 2 — Download the update (KB929063)
Microsoft Office 2004 for Mac — Download the update (KB932185)
External linkshttps://technet.microsoft.com/library/security/932553
https://technet.microsoft.com/library/security/ms07-015