A heap buffer overflow vulnerability exists in the IA32.api module of Adobe Acrobat and Acrobat Reader DC. Upon parsing a specially crafted PDF document containing URI entries with URI dictionaries and a specially crafted base URL defined with raw Unicode strings can trigger the vulnerability to achieve remote code execution.
- Exodus Intelligence: EIP-47ea5148
- MITRE CVE: CVE-2021-39863
- CVSSv2 Score: 8.8
- Exodus Intelligence
- Disclosed to affected vendor: June 28th, 2021
- Disclosed to public: September 14th, 2021
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