CVE-2006-3431 Memory corruption in n/a

What is CVE-2006-3431?

CVE-2006-3431 is a high-severity memory corruption vulnerability in Microsoft Excel, published on 7 Jul 2006. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Buffer overflow in certain Asian language versions of Microsoft Excel might allow user-assisted attackers to execute arbitrary code via a crafted STYLE record in a spreadsheet that triggers the overflow when the user attempts to repair the document or selects the "Style" option, as demonstrated by nanika.xls. NOTE: Microsoft has confirmed to CVE via e-mail that this is different than the other Excel vulnerabilities announced before 20060707, including CVE-2006-3059 and CVE-2006-3086.

Which versions are affected by CVE-2006-3431?

It affects 1 product.

Products include Microsoft Excel.

How do I fix CVE-2006-3431?

No fix has been published for CVE-2006-3431 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-2006-3431 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-3431 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-m272-v93v-8ggr.