Sensitive-memory disclosure via out-of-bounds read
Published Jun 23, 2026 · Updated Jun 23, 2026
An out-of-bounds read in Adobe Acrobat Reader allows context-dependent attackers to disclose sensitive memory through a malicious file. Adobe identifies the flaw as memory corruption but does not disclose the parser or malformed file element that causes a read beyond a buffer boundary. Exploitation requires a victim to open the file, and the documented consequence is memory disclosure without code execution or file modification.
Summary
What happened
An out-of-bounds read in Adobe Acrobat Reader allows context-dependent attackers to disclose sensitive memory through a malicious file. Adobe identifies the flaw as memory corruption but does not disclose the parser or malformed file element that causes a read beyond a buffer boundary. Exploitation requires a victim to open the file, and the documented consequence is memory disclosure without code execution or file modification.
The record
- CVE
- CVE-2020-9711
- Published
- Jun 23, 2026
- Updated
- Jun 23, 2026
- Vendor
- Adobe
- Product
- Adobe Acrobat Reader
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 23, 2026CVE publishedPublication date reported by the CVE source.
- Jun 23, 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=0 <=2015.006.30523
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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