Security readout for executives and security teams
Plain-English summary
CVE-2018-9947 is a remote code execution flaw in Foxit Reader 9.0.0.29935. A user would need to open a malicious file or visit a malicious page. If successful, the attacker could run code as that user, creating endpoint compromise risk.
Executive priority
Prioritize if legacy Foxit Reader 9.0.0.29935 is present. The business risk is endpoint compromise through normal document workflows, but the provided sources do not show active exploitation or a severity score.
Technical view
The flaw is a CWE-122 heap-based buffer overflow in Foxit Reader BMP image parsing. The parser fails to validate user-supplied length before copying data into a fixed heap buffer, allowing code execution in the current process context. The source identifies it as ZDI-CAN-5472.
Likely exposure
Exposure is limited to installations of Foxit Reader 9.0.0.29935 based on the provided bundle. Organizations using other Foxit products or versions should not assume impact without vendor confirmation.
Exploitation context
The bundle says exploitation requires user interaction through a malicious page or file. It does not provide KEV status or other cited evidence of active exploitation.
Researcher notes
The source bundle only names Foxit Reader 9.0.0.29935. Avoid extending affected scope to other versions without Foxit confirmation. No exploit indicators, patch version, or CVSS vector were included in the provided data.
Mitigation direction
- Inventory endpoints for Foxit Reader 9.0.0.29935.
- Check Foxit security bulletins for the vendor-designated fixed release or workaround.
- Prioritize remediation on systems handling external documents.
- Limit opening untrusted files or links until vendor guidance is applied.
Validation and detection
- Confirm installed Foxit Reader versions through endpoint inventory.
- Map exposed users who receive external documents or links.
- Review Foxit bulletin applicability before declaring remediation complete.
- Monitor endpoint detections involving abnormal Foxit Reader behavior.
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-122: 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-2018-9947 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-18-331CVE 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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.