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The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

🗓️ 03 Sep 2025 22:54:52Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

WebGL DrawElementsInstanced heap overflow on Mesa VM driver enables remote code execution.

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