Information disclosure via EMF parser use-after-free
Published Jan 26, 2023 · Updated Mar 31, 2025
Use-after-free in PDF-XChange Editor 9.4.363.0 allows remote attackers to disclose process memory through a crafted EMF file. The EMF parser performs operations on an object without first validating that the object still exists, permitting access after it has been freed. Exploitation requires the target to visit a malicious page or open a malicious file; the disclosure can support a separate code-execution exploit.
Summary
What happened
Use-after-free in PDF-XChange Editor 9.4.363.0 allows remote attackers to disclose process memory through a crafted EMF file. The EMF parser performs operations on an object without first validating that the object still exists, permitting access after it has been freed. Exploitation requires the target to visit a malicious page or open a malicious file; the disclosure can support a separate code-execution exploit.
The record
- CVE
- CVE-2022-42408
- Published
- Jan 26, 2023
- Updated
- Mar 31, 2025
- Vendor
- Tracker Software Products
- Product
- PDF-XChange Editor
- Classifications
- CWE-416
- 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
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Is a vulnerable build present?
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- Affected versionversion=9.4.363.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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