Information disclosure via PDF parser out-of-bounds read
Published Jan 26, 2023 · Updated Mar 31, 2025
Out-of-bounds read in PDF-XChange Editor 9.4.363.0 allows remote attackers to disclose process memory through a crafted PDF file. The PDF parser trusts crafted data when calculating a buffer read and accesses bytes beyond the allocated buffer boundary. Opening the file or visiting a malicious page is required; the disclosure can support code execution when chained with another flaw.
Summary
What happened
Out-of-bounds read in PDF-XChange Editor 9.4.363.0 allows remote attackers to disclose process memory through a crafted PDF file. The PDF parser trusts crafted data when calculating a buffer read and accesses bytes beyond the allocated buffer boundary. Opening the file or visiting a malicious page is required; the disclosure can support code execution when chained with another flaw.
The record
- CVE
- CVE-2022-42401
- Published
- Jan 26, 2023
- Updated
- Mar 31, 2025
- Vendor
- Tracker Software Products
- Product
- PDF-XChange Editor
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 26, 2023CVE publishedPublication date reported by the CVE source.
- Mar 31, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=9.4.363.0
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo