Security readout for executives and security teams
This is an old Microsoft Excel file-parsing flaw. A malicious XLS file with an oversized record could cause code execution in affected Excel and related Office components. Business risk is mainly legacy systems that still open untrusted spreadsheet files. Exposure is most likely where legacy Microsoft Excel 2002, 2003, 2007, 2010, Office for Mac 2004/2008, Excel Viewer, Open XML converter, or Office Compatibility Pack components remain installed and process external XLS files. Treat as high priority only if legacy Office components remain in use. For current, fully patched Office estates, priority is mainly confirmation and cleanup of unsupported software. Mitigation focus: Apply Microsoft guidance and security updates from MS11-021.; Remove unsupported legacy Office, Viewer, Converter, and Compatibility Pack components where possible.; Restrict or sandbox handling of untrusted XLS files on legacy endpoints..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution 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-2011-0098 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- oval:org.mitre.oval:def:12034CVE reference · vdb-entry, signature
- MS11-021CVE reference · vendor-advisory, x_refsource_MS
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.