Memory Safety Vulnerability in Firefox and Thunderbird by Mozilla

CVE-2025-11721

What is CVE-2025-11721?

A memory safety bug found in Firefox versions prior to 144 and Thunderbird versions prior to 144 may lead to memory corruption. Given sufficient effort, this vulnerability could potentially be exploited to execute arbitrary code, placing users at risk. Mozilla has addressed this issue in the latest versions, underscoring the importance of keeping software up-to-date to mitigate security risks.

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