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
Readers of this advisory who are interested in receiving further details around the vulnerability, mitigations, detection guidance, and more can contact us at email@example.com.
Researchers who are interested in monetizing their 0Day and NDay can work with us through our Research Sponsorship Program.