Sensitive memory disclosure via annotation use-after-free
Published May 11, 2022 · Updated May 27, 2026
Use-after-free in Adobe Acrobat Reader DC through 22.001.20085 allows remote attackers to disclose sensitive memory via a malicious PDF. Annotation parsing operates on an object after failing to validate that the object still exists, creating a dangling reference that exposes process memory. Exploitation requires a victim to open the file; the disclosure can help bypass ASLR, while arbitrary code execution requires chaining other flaws.
Summary
What happened
Use-after-free in Adobe Acrobat Reader DC through 22.001.20085 allows remote attackers to disclose sensitive memory via a malicious PDF. Annotation parsing operates on an object after failing to validate that the object still exists, creating a dangling reference that exposes process memory. Exploitation requires a victim to open the file; the disclosure can help bypass ASLR, while arbitrary code execution requires chaining other flaws.
The record
- CVE
- CVE-2022-24101
- Published
- May 11, 2022
- Updated
- May 27, 2026
- Vendor
- Adobe
- Product
- Adobe Acrobat Reader
- Classifications
- CWE-416, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 11, 2022CVE publishedPublication date reported by the CVE source.
- May 27, 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=unspecified <=17.012.30205
- Affected versionversion=unspecified <=20.005.3031x
- Affected versionversion=unspecified <=22.001.20085
- 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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