Executive brief
Mozilla Firefox is a popular web browser used for accessing the internet. A security flaw was identified in the component responsible for playing audio and video content, which could lead to unpredictable behavior or crashes when processing media. This issue has been resolved in Firefox version 153, and users are encouraged to update to maintain the security of their browsing environment.
Technical details
A vulnerability exists in the Audio/Video: Playback component of Mozilla Firefox due to incorrect boundary conditions. While specific exploitation details are restricted in the associated Bugzilla report (Bug 2047802), boundary condition errors typically involve buffer overflows or out-of-bounds access. An attacker could potentially exploit this by enticing a user to play a specially crafted audio or video file, leading to memory corruption or potentially arbitrary code execution within the context of the browser process. The vulnerability is addressed in Firefox 153.
Affected products
- Mozilla Firefox < 153
Timeline
- 2026-07-21: advisory: Mozilla Foundation Security Advisory 2026-68 published.
- 2026-07-21: patched: Fixed in Firefox 153.