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Fencer Intel
critical 9.3

CVE-2011-0105 in the critical feed json

Microsoft Excel 2002 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac obtain a certain length value from an un…

published 2011-04-13 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0131

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
70.2%
EPSS 70.2% chance of exploitation in 30 days, percentile 99.3%
public exploits
2
Metasploit, Exploit-DB

Summary

Microsoft Excel 2002 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac obtain a certain length value from an uninitialized memory location, which allows remote attackers to trigger a buffer overflow and execute arbitrary code via a crafted Excel file, aka "Excel Data Initialization Vulnerability."

Timeline

  1. Published
  2. First public exploit (Metasploit exploit/windows/fileformat/ms11_021_xlb_bof)

Exploit prediction

70.17% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.