Security readout for executives and security teams
Plain-English summary
IBM Daeja ViewONE 5.0.5 and 5.0.6 can mishandle XML input. An attacker with low privileges over the network could use this to read sensitive information or exhaust memory. Treat this as high priority where Daeja ViewONE is exposed to untrusted users or documents.
Executive priority
Prioritize remediation in document-viewing environments that handle sensitive records or external submissions. The issue is high severity but not confirmed as actively exploited in the supplied sources. Business urgency is strongest where affected versions are internet-adjacent, shared by many users, or process untrusted XML content.
Technical view
CVE-2019-4456 is an XML External Entity injection issue in IBM Daeja ViewONE Professional, Standard, and Virtual versions 5.0.5 and 5.0.6. CVSS 3.0 is 7.1, with network attack vector, low attack complexity, no user interaction, low privileges required, high confidentiality impact, and availability impact.
Likely exposure
Exposure is limited to environments running IBM Daeja ViewONE Professional, Standard, or Virtual 5.0.5 or 5.0.6. Systems processing XML data from users, integrations, or document workflows are the main concern. The source bundle does not identify other affected versions or products.
Exploitation context
The supplied sources do not state active exploitation, and this CVE is not marked as KEV. The documented impact is sensitive information exposure or memory resource consumption through malicious XML processing. Privileges are required according to the CVSS vector, so risk depends on who can submit XML content.
Researcher notes
The source bundle provides affected products, affected versions, CVSS vector, IBM X-Force ID 163620, and high-level impact. It does not provide exploit proof, detailed parser behavior, exact vulnerable XML paths, or a named fixed version. Avoid assuming broader Daeja ViewONE exposure without vendor confirmation.
Mitigation direction
- Inventory Daeja ViewONE deployments and identify versions 5.0.5 or 5.0.6.
- Review IBM advisory 10959177 for the official remediation path.
- Apply IBM-provided fixes or upgrades where the affected versions are present.
- Restrict untrusted XML input paths until remediation is complete.
- Monitor Daeja ViewONE hosts for abnormal memory usage or sensitive file access indicators.
Validation and detection
- Confirm installed Daeja ViewONE edition and version on each server.
- Map which applications or users can submit XML data for processing.
- Check change records for IBM remediation or upgrade completion.
- Review logs for unusual XML processing errors or resource exhaustion around viewer workflows.
- Verify compensating access controls limit untrusted users before patch completion.
Public sources used
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.
CVE-2019-4456 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
- High
- CVSS
- 7.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/A:L/UI:N/AV:N/C:H/S:U/AC:L/I:N/PR:L/RC:C/RL:O/E:U
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 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:3.0/A:L/UI:N/AV:N/C:H/S:U/AC:L/I:N/PR:L/RC:C/RL:O/E:U2.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.1HighVector: CVSS:3.0/A:L/UI:N/AV:N/C:H/S:U/AC:L/I:N/PR:L/RC:C/RL:O/E:U
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/docview.wss?uid=ibm10959177CVE reference · x_refsource_CONFIRM
- ibm-daejaview-cve20194456-xxe (163620)CVE reference · vdb-entry, x_refsource_XF
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.