Cybersecuritynews Firefox v147.0.3 Addresses Critical Heap Buffer Overflow Vulnerability
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Mozilla has released Firefox version 147.0.3 to fix a critical heap buffer overflow vulnerability in the browser’s media processing library. This flaw could allow attackers to execute arbitrary code, impacting both desktop and Extended Support Release (ESR) versions of Firefox. The update is part of Mozilla Foundation Security Advisory 2026-10.
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Timeline
2026-02-17
Firefox version 147.0.3 released with critical fix
2026-02-17
Mozilla Foundation Security Advisory 2026-10 published
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