Security readout for executives and security teams
This is an old Microsoft Excel remote code execution flaw. A malicious spreadsheet can corrupt memory and run code when opened. The business risk is concentrated on endpoints still using legacy Office, Excel Viewer, Mac Office, converters, or compatibility packs listed in MS09-067. Likely exposure is legacy desktop software, not servers: Excel 2002 SP3, 2003 SP3, 2007 SP1/SP2, Office 2004/2008 for Mac, Excel Viewer, Open XML Converter for Mac, and Office Compatibility Pack versions named by Microsoft. Prioritize remediation where legacy Office is still present. The vulnerability is old, patched, and user-assisted, but KEV status means it has been exploited and should not remain in production environments. Mitigation focus: Apply Microsoft MS09-067 updates where affected products remain installed.; Replace unsupported Office, viewers, converters, and compatibility packs with supported versions.; Block or quarantine unsolicited spreadsheet attachments from untrusted sources..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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CWE-787: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2009-3129 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- oval:org.mitre.oval:def:6521CVE reference · vdb-entry, signature
- MS09-067CVE reference · vendor-advisory, x_refsource_MS
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-3129CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.