Code execution via out-of-bounds write
Published Jun 12, 2026 · Updated Jun 12, 2026
Out-of-bounds write in Adobe Acrobat Reader 26.001.21651 and earlier allows attackers to execute code via a malicious PDF file. Adobe has not disclosed the affected parser or memory object, the unchecked length or index, or the write operation that crosses its destination bounds. A victim must open the crafted file, and resulting code runs with that user's privileges on affected Windows and macOS systems.
Summary
What happened
Out-of-bounds write in Adobe Acrobat Reader 26.001.21651 and earlier allows attackers to execute code via a malicious PDF file. Adobe has not disclosed the affected parser or memory object, the unchecked length or index, or the write operation that crosses its destination bounds. A victim must open the crafted file, and resulting code runs with that user's privileges on affected Windows and macOS systems.
The record
- CVE
- CVE-2026-47965
- Published
- Jun 12, 2026
- Updated
- Jun 12, 2026
- Vendor
- Adobe
- Product
- Adobe Acrobat Reader
- Classifications
- CWE-787, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 12, 2026CVE publishedPublication date reported by the CVE source.
- Jun 12, 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 <=26.001.21651
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.
Weakness, pattern, technique
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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