Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.3.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "143.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.3.0"
}
]
},
{
"events": [
{
"introduced": "141.0"
},
{
"fixed": "143.0"
}
]
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-10527.json"