| Business Impact: |
This vulnerability is in a core component of most modern Microsoft Office packages. The Microsoft Office Excel Viewer is a replacement for all previous Excel Viewer versions, including Excel Viewer 97 and Excel Viewer 2003. While some customers may be able to react by blocking email with spreadsheet attachments through traditional email filtering means, this may not be feasible for everyone. In this case, customers should enable protection technologies like the Proventia IPS signature for this issue and deploy patches as soon as they are available. |
| *CVSS |
Base Score: |
9.3 |
| |
Access Vector: |
Network |
| Access Complexity: |
Medium |
| Authentication: |
None |
| Confidentiality Impact: |
Complete |
| Integrity Impact: |
Complete |
| Availability Impact: |
Complete |
|
|
| Adjusted Temporal Score: |
6.9 |
| |
Exploitability: |
Unproven |
| Remediation Level: |
Official Fix |
| Report Confidence: |
Confirmed |
| Affected Products: |
For a full list of affected versions, see references below. |
| Technical Description: |
Microsoft Excel could allow a remote attacker to execute arbitrary code on the system, caused by the improper parsing of the Excel spreadsheet file format. By persuading a victim to open a specially-crafted XLSX file, a remote attacker could exploit this vulnerability to execute arbitrary code on the system with the privileges of the victim. |
| Remediation: |
Patches are available. See References for details. |
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