Risk Letters

Exploited vulnerability

CVE-2009-3129

TLP:CLEAR

Microsoft Excel Featheader Record Memory Corruption Vulnerability

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.

Facts

  • Vendor: Microsoft
  • Product: Excel
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 84 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 March 2022
  • First known exploitation: 3 March 2022
  • CISA's deadline for US federal agencies: 24 March 2022
  • Weakness: CWE-94
  • First seen by Risk Letters: 3 March 2022

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD