Security readout for executives and security teams
Plain-English summary
CVE-2018-9968 is a remote code execution flaw in Foxit Reader 9.0.1.1049. An attacker would need a user to open a malicious file or visit a malicious page. Successful exploitation could run code with the same rights as the Foxit Reader process.
Executive priority
Prioritize remediation where Foxit Reader 9.0.1.1049 exists on user workstations. The business risk is document-driven compromise through normal user activity, but the source bundle does not show active exploitation.
Technical view
The flaw is in Foxit Reader handling of Keystroke actions for TextBox objects. The source describes missing validation that an object exists before operations are performed, mapped to CWE-416. ZDI tracked it as ZDI-CAN-5572 / ZDI-18-352.
Likely exposure
Exposure is limited to systems running Foxit Reader 9.0.1.1049. Risk is higher where users open external documents or browse untrusted pages. The bundle does not identify other Foxit products or versions as affected.
Exploitation context
The source states exploitation requires user interaction. CISA KEV status is false, and the bundle provides no evidence of active exploitation or public exploit availability. Treat it as a credible RCE risk, not a confirmed in-the-wild campaign.
Researcher notes
Key unknowns are CVSS score, fixed version, and exploit maturity. The provided evidence supports RCE with user interaction in one Foxit Reader version and a CWE-416 classification, but does not support broader affected-version claims.
Mitigation direction
- Inventory endpoints for Foxit Reader 9.0.1.1049.
- Check Foxit security bulletins for vendor-approved fixed versions or guidance.
- Upgrade or remove vulnerable installations according to Foxit guidance.
- Limit opening untrusted files until remediation is complete.
- Apply least-privilege controls for users running document readers.
Validation and detection
- Confirm installed Foxit Reader version on managed endpoints.
- Verify whether any systems still report version 9.0.1.1049.
- Review Foxit and ZDI advisories for remediation details.
- Confirm patched or replacement versions are deployed.
- Check endpoint telemetry for suspicious Foxit Reader crashes or abnormal child processes.
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-416: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-9968 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-18-352CVE 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.