Buffer overflow in Microsoft Excel
CVE-2011-1276
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."
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.282 (98.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.282 · newest: 0.282 · change: 0.000
Affected products
- Microsoft Excel — versions 2002, 2003, 2007
- Microsoft Excel Viewer
- Microsoft Office — versions 2004, 2008
- Microsoft Office Compatibility Pack — versions 2007
- Microsoft Open XML File Format Converter
Weakness classification (CWE)
Public proof-of-concept exploits
References
- osvdb.org/72924 (vdb-entry)
- securityreason.com/securityalert/8330 (third-party-advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:12451 (signature, vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-045 (vendor-advisory)
Frequently asked questions
- What is CVE-2011-1276?
- CVE-2011-1276 is a vulnerability in Microsoft Excel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2011-06-16.
- Is CVE-2011-1276 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.