CVE-2011-1276 Memory corruption in n/a

What is CVE-2011-1276?

CVE-2011-1276 is a critical memory corruption vulnerability in Microsoft Excel, published on 16 Jun 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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."

Weakness: CWE-119

Which versions are affected by CVE-2011-1276?

It affects 5 products.

Products include Microsoft Excel, Microsoft Excel Viewer, Microsoft Office, Microsoft Office Compatibility Pack, Microsoft Open Xml File Format Converter.

How do I fix CVE-2011-1276?

No fix has been published for CVE-2011-1276 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2011-1276 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-1276 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Microsoft Excel

• CVE-2019-1297 Microsoft Excel Remote Code Execution Exploited High 8.8
• CVE-2009-0238 Microsoft Office Remote Code Execution Exploited High 8.8
• CVE-2016-7262 Microsoft Office Security Feature Bypass Exploited High 7.8
• CVE-2009-3129 Microsoft Excel Featheader Record Memory Corruption Exploited High 7.8
• CVE-2008-0081 Code injection in n/a Critical 9.8

All Microsoft Excel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-34mj-v24w-6jvv.