Memory disclosure via use-after-free
Published Sep 8, 2026 · Updated Sep 10, 2026
Use-after-free in Adobe Acrobat and Reader 26.002.21900 and earlier allows attackers to disclose sensitive memory via a crafted file. Adobe has not disclosed the affected parser, object type, or operation that accesses an object after its lifetime ends. Exploitation requires a victim to open the malicious file and is limited to memory disclosure, with no reported integrity or availability impact.
Summary
What happened
Use-after-free in Adobe Acrobat and Reader 26.002.21900 and earlier allows attackers to disclose sensitive memory via a crafted file. Adobe has not disclosed the affected parser, object type, or operation that accesses an object after its lifetime ends. Exploitation requires a victim to open the malicious file and is limited to memory disclosure, with no reported integrity or availability impact.
The record
- CVE
- CVE-2026-81984
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Adobe
- Product
- Adobe Acrobat Pro 2024
- Classifications
- CWE-416, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 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 <=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.
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Technologies
Your stack
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Your stack
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