Apple has released security updates to address a zero-day vulnerability in its CoreGraphics framework that has been actively exploited in targeted attacks against iOS devices. The attacks are described as 'extremely sophisticated,' suggesting a high-level threat actor may be involved. CoreGraphics is a fundamental graphics rendering framework used across Apple's operating systems. The patch was issued as an emergency update given the active exploitation. Users are strongly urged to update their devices immediately to mitigate risk. The vulnerability appears to be targeted rather than widespread, but the sophistication level raises significant concern. No specific CVE identifier was extractable from the provided content snippet.