CVE-2011-1990

Microsoft Excel 2007 SP2; Excel in Office 2007 SP2; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; and…

published September 15, 2011

CVSS
—
EPSS
20%
Percentile
97.5
In the wild
Unconfirmed
What it is

⚠️ A crafty array indexing issue lurks in Microsoft Excel! This sneaky flaw lets attackers send a specially crafted spreadsheet that could lead to arbitrary code execution. 📊 Think of it as a chef in a kitchen who mismeasures ingredients — one miscalculation can lead to an entire dish going wrong! In this case, the flaw allows attackers to create a malicious file that, when opened, can cause chaos in the system. If exploited, this vulnerability could allow an attacker to run arbitrary code on the victim's machine, potentially leading to data theft, system compromise, or loss of sensitive information. While there's no known exploitation yet, the implications could be absolutely devastating!

Put simply

Think of it as a chef in a kitchen who mismeasures ingredients — one miscalculation can lead to an entire dish going wrong! In this case, the flaw allows attackers to create a malicious file that, when opened, can cause chaos in the system. The vulnerability arises from improper validation of an array index in multiple Microsoft Excel products, which can let attackers manipulate data access. This oversight could enable them to execute code remotely upon opening a malicious spreadsheet.

What to do

If exploited, this vulnerability could allow an attacker to run arbitrary code on the victim's machine, potentially leading to data theft, system compromise, or loss of sensitive information. While there's no known exploitation yet, the implications could be absolutely devastating! To protect yourself and your users, ensure you're running the latest updates for all affected Microsoft Office products. Regularly check for patches and consider implementing security software that scans for potentially harmful files before they're opened. You've got this! Stay vigilant, apply those updates, and you'll keep your Excel sheets and systems secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.20486 · 97.5th percentile
Published
2011-09-15T10:00Z
EPSS history
Timeline
  • 15 SEP 10:00Z
    Microsoft Excel 2007 SP2; Excel in Office 2007 SP2; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; and…
    cvelistv5