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CVE-2009-3129CISA KEV

Microsoft Excel Featheader Record Memory Corruption Vulnerability

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

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.

Product: Excel
Added to KEV: 3 Mar 2022
Federal remediation due: 24 Mar 2022
Known ransomware use: Not reported

Page history

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Field-level log (2)

Up to 100 recent field edits are shown; older edits may be outside retention.

23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2009-3129. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

cve-program · CVE-2009-3129

Published

n/a

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "n/a",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "n/a"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON