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Fencer Intel
critical 9.3

CVE-2015-2521 in the critical feed json

Microsoft Excel 2007 SP3, Excel 2010 SP2, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code…

published 11y ago modified 4mo ago also EUVD-2015-2614

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
27.7%
EPSS 27.7% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

Microsoft Excel 2007 SP3, Excel 2010 SP2, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

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Timeline

  1. Published
  2. First public exploit (EDB-38216)

Exploit prediction

27.69% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-38216 Microsoft Office 2007 - OLESSDirectyEntry.CreateTime Type Confusion dos, 2015-09-16

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.