Code execution via out-of-bounds memory write
Published Sep 8, 2026 · Updated Sep 9, 2026
Out-of-bounds write in Adobe Acrobat and Reader allows local users to execute code in the current user's context via a malicious PDF. Adobe identifies an out-of-bounds memory write but has not disclosed the affected parser, object type, or unchecked operation on file data. Exploitation requires a victim to open a crafted file and affects Acrobat and Reader 26.002.21900 and earlier and Acrobat 2024 24.001.30383 and earlier on Windows and macOS.
Summary
What happened
Out-of-bounds write in Adobe Acrobat and Reader allows local users to execute code in the current user's context via a malicious PDF. Adobe identifies an out-of-bounds memory write but has not disclosed the affected parser, object type, or unchecked operation on file data. Exploitation requires a victim to open a crafted file and affects Acrobat and Reader 26.002.21900 and earlier and Acrobat 2024 24.001.30383 and earlier on Windows and macOS.
The record
- CVE
- CVE-2026-81980
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Adobe
- Product
- Adobe Acrobat Pro 2024
- Classifications
- CWE-787, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=24.001.30383
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo