Security readout for executives and security teams
Plain-English summary
CVE-2018-17611 affects Foxit PhantomPDF and Foxit Reader before version 9.3. A malformed PDF annotation could trigger a use-after-free condition, allowing code execution or a crash. Business risk is highest where outdated Foxit clients open external or emailed PDFs.
Executive priority
Prioritize remediation where Foxit is used on employee workstations handling external documents. The potential impact includes code execution, but exploitation evidence and scoring are incomplete in the provided sources.
Technical view
The CVE describes mishandling of Annotation object properties in Foxit PhantomPDF and Reader before 9.3. The flaw is a use-after-free condition tied to one of five Annotation object types, with stated impact of arbitrary code execution or denial of service.
Likely exposure
Endpoints running Foxit PhantomPDF or Foxit Reader before 9.3 are the likely exposure, especially users who receive PDFs from email, web downloads, or external partners.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The described attack context is remote code execution or denial of service through malicious PDF content.
Researcher notes
The public record lacks CVSS, CWE, CPE, and detailed affected-version metadata beyond Foxit PhantomPDF and Reader before 9.3. Analysis should stay tied to vendor guidance and confirmed local software inventory.
Mitigation direction
- Upgrade Foxit PhantomPDF and Foxit Reader to version 9.3 or later.
- Check Foxit security bulletins for any product-specific remediation guidance.
- Remove unsupported or unnecessary Foxit installations from managed endpoints.
- Restrict high-risk PDF handling on systems that cannot be upgraded promptly.
Validation and detection
- Inventory Foxit PhantomPDF and Foxit Reader versions across endpoints.
- Confirm no installed Foxit client is older than version 9.3.
- Review software management records for successful Foxit update deployment.
- Verify email and web controls inspect or contain untrusted PDF attachments.
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.
Execution 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-2018-17611 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_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.