libhevc HEVC Video Decoder Out-Of-Bounds Read Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Google Android. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of slice headers. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
Additional Details
libhevc has issued an update to correct this vulnerability. More details can be found at:
https://github.com/ittiam-systems/libhevc/commit/84cd24a039fac4f8fc00f45c3e002218d8d2ea9d
Disclosure Timeline
- 2026-08-06 - Vulnerability reported to vendor
- 2026-11-13 - Coordinated public release of advisory
- 2026-11-13 - Advisory Updated
Credit
Lucas Leong (@_wmliang_) of TrendAI Zero Day Initiative
