Security readout for executives and security teams
A malformed PDF can trigger an integer overflow in older SumatraPDF/MuPDF parsing code. The business risk is mainly from legacy PDF readers or embedded MuPDF components handling untrusted documents. The source bundle does not provide impact, CVSS, or active exploitation evidence. Exposure is most likely where legacy SumatraPDF 2.1.1, MuPDF 1.0, or applications embedding that MuPDF code parse untrusted PDFs from email, web uploads, or shared file repositories. Prioritize as a legacy exposure cleanup item unless your environment processes untrusted PDFs at scale. Escalate if affected versions are found in email, upload, or automated document-processing paths. Mitigation focus: Inventory SumatraPDF and MuPDF versions in endpoints and embedded applications.; Move affected legacy deployments to vendor-supported PDF parsing software.; Review the Ghostscript bug and MuPDF commit for vendor-approved fix guidance..
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
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ATT&CK lookup starting points
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CVE-2012-5340 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
Products and packages named in the record
CWE details
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