Security readout for executives and security teams
Plain-English summary
CVE-2018-9983 affects Foxit Reader 9.0.0.29935. A victim must open a malicious file or visit a malicious page. The flaw can expose sensitive information and may assist broader exploit chains. No provided source shows active exploitation or a CVSS score.
Executive priority
Handle as a targeted desktop application risk. It is not shown as actively exploited, but document-reader flaws can support compromise chains and should be remediated where the affected version exists.
Technical view
The flaw is a CWE-125 out-of-bounds read in Foxit Reader's U3D file parsing. Missing validation of user-supplied data can read past an allocated data structure. The advisory notes attackers may combine it with other vulnerabilities to execute code in the process context.
Likely exposure
Exposure is limited to environments running Foxit Reader 9.0.0.29935, especially where users open untrusted documents or browse untrusted content that can trigger Reader handling.
Exploitation context
User interaction is required. The source bundle does not indicate CISA KEV listing, active exploitation, public exploit code, or standalone remote code execution.
Researcher notes
Evidence identifies a U3D parser out-of-bounds read in Foxit Reader 9.0.0.29935, originally ZDI-CAN-5494. Patch details are not included in the provided bundle, so remediation should be verified against Foxit guidance.
Mitigation direction
- Inventory Foxit Reader installations and identify version 9.0.0.29935.
- Check Foxit security bulletins for vendor remediation guidance.
- Prioritize remediation or removal where the affected version is present.
- Limit handling of untrusted files or pages until remediation is confirmed.
Validation and detection
- Confirm installed Foxit Reader versions on managed endpoints.
- Map affected hosts to users handling external documents.
- Review vendor bulletin coverage for CVE-2018-9983.
- Verify remediation status after applying vendor guidance.
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.
CWE-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-9983 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
- https://www.foxitsoftware.com/support/security-bulletins.phpCVE reference · x_refsource_CONFIRM
- https://zerodayinitiative.com/advisories/ZDI-18-381CVE 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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.