Sensitive memory disclosure via use-after-free
Published Aug 11, 2022 · Updated Apr 23, 2025
Use-after-free in Adobe Acrobat Reader versions 22.001.20169 and earlier allows attackers to disclose sensitive memory via malicious files. The vendor identifies a use-after-free condition but does not publish the affected code locus or operation on untrusted PDF data. Exploitation requires a victim to open a malicious file, and the documented consequence is memory disclosure that can help bypass ASLR rather than code execution.
Summary
What happened
Use-after-free in Adobe Acrobat Reader versions 22.001.20169 and earlier allows attackers to disclose sensitive memory via malicious files. The vendor identifies a use-after-free condition but does not publish the affected code locus or operation on untrusted PDF data. Exploitation requires a victim to open a malicious file, and the documented consequence is memory disclosure that can help bypass ASLR rather than code execution.
The record
- CVE
- CVE-2022-35670
- Published
- Aug 11, 2022
- Updated
- Apr 23, 2025
- Vendor
- Adobe
- Product
- Adobe Acrobat Reader
- Classifications
- CWE-416, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 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 <=17.012.30249
- Affected versionversion=unspecified <=20.005.30362
- Affected versionversion=unspecified <=22.001.20169
- 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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