Update your browser and your libvpx dependency.
"Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)"
"Specific handling of an attacker-controlled VP8 media stream could lead to a heap buffer overflow in the content process. Fixed in Firefox 118.0.1, Firefox ESR 115.3.1, Firefox Focus for Android 118.1, Firefox for Android 118.1"
https://www.tenable.com/cve/CVE-2023-5217
https://www.mozilla.org/en-US/security/advisories/mfsa2023-44/