Security readout for executives and security teams
This CVE affects applications that use python-docx before 0.8.6 to process crafted Word documents. A malicious document could trigger XML External Entity behavior. Business urgency depends on whether the application accepts documents from users, email, partners, or other untrusted sources. Exposure is most likely in Python services, automation, or back-office tools that parse untrusted .docx files with python-docx versions earlier than 0.8.6. Prioritize if document upload or automated document intake is exposed to untrusted parties. Lower priority for isolated internal-only tooling with no untrusted document flow. Mitigation focus: Upgrade python-docx to 0.8.6 or later.; Prioritize systems that ingest documents from untrusted users or partners.; Check Linux distribution advisories if using packaged python-docx..
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-2016-5851 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
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
- https://github.com/python-openxml/python-docx/blob/v0.8.6/HISTORY.rstCVE reference
- FEDORA-2021-aa54748cd9CVE reference · vendor-advisory
- FEDORA-2021-aa6ebc01beCVE reference · vendor-advisory
- https://github.com/python-openxml/python-docx/commit/61b40b161b64173ab8e362aec1fd197948431bebCVE reference
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.