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Fencer Intel
critical 9.3

CVE-2011-1276 in the critical feed json

Buffer overflow in Microsoft Excel 2002 SP3, 2003 SP3, and 2007 SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac;…

published 2011-06-16 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1284

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
28.2%
EPSS 28.2% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

Buffer overflow in Microsoft Excel 2002 SP3, 2003 SP3, and 2007 SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted Excel spreadsheet, related to improper validation of record information, aka "Excel Buffer Overrun Vulnerability."

Timeline

  1. Published
  2. First public exploit (EDB-17643)

Exploit prediction

28.22% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-17643 Excel - SLYK Format Parsing Buffer Overrun (PoC) dos, 2011-08-09

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.