Security readout for executives and security teams
Plain-English summary
CVE-2018-9978 affects Foxit Reader 9.0.0.29935. A victim must open a malicious file or visit a malicious page. The flaw can disclose sensitive information and may help an attacker chain toward code execution with other vulnerabilities.
Executive priority
Treat this as a targeted endpoint software risk, not an internet-facing emergency. Prioritize if Foxit Reader 9.0.0.29935 is broadly deployed or used for external documents.
Technical view
The vulnerability is an out-of-bounds read, CWE-125, in Foxit Reader U3D file parsing. The parser lacks proper validation of user-supplied data, allowing reads past an allocated object. Public sources do not provide CVSS, confirmed fixed versions, or active exploitation evidence.
Likely exposure
Exposure is limited to systems running Foxit Reader 9.0.0.29935, especially where users open untrusted documents or browse attacker-controlled content.
Exploitation context
The sources state user interaction is required. The target must open a malicious file or visit a malicious page. KEV status is false, and the bundle provides no cited evidence of active exploitation.
Researcher notes
Key uncertainty remains: the supplied sources do not include CVSS metrics, patch mapping, proof-of-concept status, or exploitation telemetry. Analysis should stay scoped to Foxit Reader 9.0.0.29935 and U3D parsing.
Mitigation direction
- Inventory Foxit Reader installations and identify version 9.0.0.29935.
- Check Foxit security bulletins for vendor-fixed versions and update accordingly.
- Remove or replace vulnerable installations where business use is unnecessary.
- Reduce exposure to untrusted documents and web content through existing email and web controls.
Validation and detection
- Confirm whether Foxit Reader 9.0.0.29935 exists in endpoint inventory.
- Verify upgraded systems no longer report the affected version.
- Review software deployment records for Foxit Reader update coverage.
- Check user-facing document handling workflows for untrusted file exposure.
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-2018-9978 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://zerodayinitiative.com/advisories/ZDI-18-376CVE reference · x_refsource_MISC
- https://www.foxitsoftware.com/support/security-bulletins.phpCVE reference · x_refsource_CONFIRM
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.