Sensitive memory disclosure via stale Doc object
Published Jul 15, 2022 · Updated Apr 23, 2025
Use-after-free in Doc.printWithParams in Adobe Acrobat Reader allows attackers to disclose sensitive memory from the current process. The Doc-object handler performs operations without first validating that the referenced object still exists, causing access to freed memory. A victim must open a malicious PDF or visit a malicious page; disclosure can expose memory useful for bypassing ASLR, but does not directly alter data or interrupt service.
Summary
What happened
Use-after-free in Doc.printWithParams in Adobe Acrobat Reader allows attackers to disclose sensitive memory from the current process. The Doc-object handler performs operations without first validating that the referenced object still exists, causing access to freed memory. A victim must open a malicious PDF or visit a malicious page; disclosure can expose memory useful for bypassing ASLR, but does not directly alter data or interrupt service.
The record
- CVE
- CVE-2022-34234
- Published
- Jul 15, 2022
- Updated
- Apr 23, 2025
- Vendor
- Adobe
- Product
- Adobe Acrobat Reader
- Classifications
- CWE-416, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 15, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <=17.012.30229
- Affected versionversion=unspecified <=20.005.30334
- Affected versionversion=unspecified <=22.001.20142
- Affected versionversion=unspecified <=None
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.
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Technologies
Your stack
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Your stack
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