netVigilance Vulnerability intelligence since 2004
CVE-2009-3129 · netVigilance record NV22-0078

Microsoft Excel Featheader Record Memory Corruption

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2022-03-24 · passed 4 years 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Microsoft Office Excel allows remote attackers to execute arbitrary code via a spreadsheet with a FEATHEADER record containing an invalid cbHdrData size element that affects a pointer offset.

Who is affected

Microsoft Excel. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-94.

Timeline

  1. Added to CISA KEVExploitation in the wild confirmed by CISA
  2. CISA remediation deadlinepassed 4 years 5 months ago

Sources