Security readout for executives and security teams
CVE-2021-28093 affects OX Documents before 7.10.5-rev5. Converted document images used weak Adler32-based hashing, creating possible hash collisions and incorrect access control. In business terms, this could risk unintended access to converted document images, but the public bundle does not provide severity, CVSS, or detailed impact scope. Exposure is likely limited to environments running OX Documents before 7.10.5-rev5, particularly where document-to-image conversion is enabled or used. The bundle does not define deployment model, authentication requirements, or affected configurations. Treat this as a targeted exposure review, not a confirmed emergency. Prioritize quickly if OX Documents handles sensitive documents or is internet-accessible, because the issue concerns access control. Evidence is incomplete, so urgency should be based on deployment presence and data sensitivity. Mitigation focus: Upgrade OX Documents to 7.10.5-rev5 or later if deployed.; Review the Open-Xchange advisory for vendor-specific remediation guidance.; Limit access to document conversion features where business use allows..
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-2021-28093 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://www.open-xchange.com/CVE reference · x_refsource_MISC
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.