Application crash via malformed OTF font parsing
Published Feb 15, 2024 · Updated Apr 24, 2025
Improper input validation in Adobe Acrobat and Acrobat Reader 20.005.30539 and 23.008.20470 and earlier allows attackers to crash the application. The OTF font parsing path processes malformed font data from a crafted file, but Adobe has not disclosed the specific validation failure or erroneous parsing operation. A victim must open the malicious file; exploitation interrupts only that application instance, with no reported data disclosure or modification.
Summary
What happened
Improper input validation in Adobe Acrobat and Acrobat Reader 20.005.30539 and 23.008.20470 and earlier allows attackers to crash the application. The OTF font parsing path processes malformed font data from a crafted file, but Adobe has not disclosed the specific validation failure or erroneous parsing operation. A victim must open the malicious file; exploitation interrupts only that application instance, with no reported data disclosure or modification.
The record
- CVE
- CVE-2024-20733
- Published
- Feb 15, 2024
- Updated
- Apr 24, 2025
- Vendor
- Adobe
- Product
- Adobe Acrobat
- Classifications
- CWE-20, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 15, 2024CVE publishedPublication date reported by the CVE source.
- Apr 24, 2025Record 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 <=23.008.20470
- Affected versionversion=2020 <=20.005.30539
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
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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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