Excel invalid object access exploit — CVE-2009-0238

CVE_2009_0238

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critical CVE likely CVE_2009_0238

What it means

Excel workbook has repeated malformed drawing-object (OBJ) records using an invalid target value, alongside shellcode/heap-spray context — the CVE-2009-0238 shape.

Why it fires

CVE-2009-0238 is an Excel remote-code-execution vulnerability triggered by a crafted workbook that causes invalid object access. The detector requires repeated malformed BIFF OBJ records whose ftMacro subrecord uses the invalid 0xFFFF target, plus shellcode or heap-spray context. Ordinary form-control OBJ records are not sufficient.

Other CVE heuristics

CVE_2026_34621_RELATED CVE_2023_26369 CVE_2026_34621 CVE_2010_1297_FLASH_RICHMEDIA CVE_2010_1297_SWF_TRIGGER CVE_2011_0611_SWF_TRIGGER CVE_2009_1862_FLASH_RICHMEDIA CVE_2010_2883 CVE_2018_4901 CVE_2009_3459 CVE_2018_4990_JPX_EMBEDDED_CMD CVE_2018_4990_JPX_CMAP_TRIGGER CVE_2010_1240 CVE_2010_0188 CVE_2014_0514 CVE_2013_3346 CVE_2013_0640 CVE_2010_3654_FLASH_RICHMEDIA CVE_2007_5020_MAILTO_MSHTA CVE_2014_0496 CVE_2008_2551 CVE_2021_40444 CVE_2006_4694 CVE_2008_0118