CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
22.6%
The Mozilla Foundation’s Security Advisory: Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-related schemes news: and snews:. Since most operating systems don’t have a trusted newsreader installed by default, an unscrupulous program that the user downloaded could register itself as a handler. The website that served the application download could then launch that application at will.
bugzilla.mozilla.org/show_bug.cgi?id=1908496
bugzilla.redhat.com/show_bug.cgi?id=2309429
nvd.nist.gov/vuln/detail/CVE-2024-8383
www.cve.org/CVERecord?id=CVE-2024-8383
www.mozilla.org/security/advisories/mfsa2024-39/
www.mozilla.org/security/advisories/mfsa2024-40/
www.mozilla.org/security/advisories/mfsa2024-41/
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
22.6%