Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. (CVE-2025-1933, CVE-2025-1934, CVE-2025-1935, CVE-2025-1936, CVE-2025-1937, CVE-2025-1942)
It was discovered that Firefox did not properly handle WebTransport connection, leading to a use-after-free vulnerability. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2025-1931)
Ivan Fratric discovered that Firefox did not properly handle XSLT sorting, leading to a out-of-bounds access vulnerability. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. (CVE-2025-1932)
{
"binaries": [
{
"binary_version": "136.0+build3-0ubuntu0.20.04.1",
"binary_name": "firefox"
},
{
"binary_version": "136.0+build3-0ubuntu0.20.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "136.0+build3-0ubuntu0.20.04.1",
"binary_name": "firefox-geckodriver"
},
{
"binary_version": "136.0+build3-0ubuntu0.20.04.1",
"binary_name": "firefox-mozsymbols"
}
],
"availability": "No subscription required"
}
{
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1931"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1932"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1933"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1934"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1935"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1936"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1937"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-1942"
}
]
}