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An attacker could have leveraged the Windows Error Reporter to run arbitrary code on the system escaping the sandbox. *Note:* This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

🗓️ 03 Sep 2025 22:49:35Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 4 Views

Windows Error Reporter enables arbitrary code execution and sandbox escape on Windows only; affects Firefox, Firefox ESR, and Thunderbird.

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03 Sep 2025 22:49Current
9.2High risk
Vulners AI Score9.2
CVSS 3.15.9
EPSS0.00583
SSVC
4