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Memory safety bugs present in Firefox 118. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 119.

🗓️ 03 Sep 2025 21:53:08Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Memory safety bugs in Firefox 118 may corrupt memory and enable arbitrary code execution; affects versions before 119.

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03 Sep 2025 21:53Current
7High risk
Vulners AI Score7
CVSS 3.19.8
EPSS0.00405
2