Code execution via unbounded PDF title copy
Published Aug 20, 2025 · Updated May 15, 2026
Stack-based buffer overflow in Foxit PDF Reader before 4.2.0.0928 allows attackers to execute code through a crafted PDF. The Info dictionary Title handler copies an overlong /Title string into a fixed-size stack buffer, overwriting the SEH chain. Exploitation requires a user to open the file and runs code with that user's privileges on Windows.
Summary
What happened
Stack-based buffer overflow in Foxit PDF Reader before 4.2.0.0928 allows attackers to execute code through a crafted PDF. The Info dictionary Title handler copies an overlong /Title string into a fixed-size stack buffer, overwriting the SEH chain. Exploitation requires a user to open the file and runs code with that user's privileges on Windows.
The record
- CVE
- CVE-2010-20010
- Published
- Aug 20, 2025
- Updated
- May 15, 2026
- Vendor
- Foxit Software
- Product
- Foxit PDF Reader
- Classifications
- CWE-121, CAPEC-100, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 20, 2025CVE publishedPublication date reported by the CVE source.
- May 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <4.2.0.0928
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Foxit Reader 4.1.1 Stack Overflow PoCproof of concept · demonstrated
- Foxit PDF Reader Title Stack Buffer Overflow Metasploit Modulefunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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