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%
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. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 999 | all | firefox | < 130.0-1 | firefox_130.0-1_all.deb |
Debian | 12 | all | firefox-esr | < 115.15.0esr-1~deb12u1 | firefox-esr_115.15.0esr-1~deb12u1_all.deb |
Debian | 11 | all | firefox-esr | < 115.15.0esr-1~deb11u1 | firefox-esr_115.15.0esr-1~deb11u1_all.deb |
Debian | 999 | all | firefox-esr | < 115.15.0esr-1 | firefox-esr_115.15.0esr-1_all.deb |
Debian | 13 | all | firefox-esr | < 115.15.0esr-1 | firefox-esr_115.15.0esr-1_all.deb |
Debian | 12 | all | thunderbird | < 1:115.15.0-1~deb12u1 | thunderbird_1:115.15.0-1~deb12u1_all.deb |
Debian | 11 | all | thunderbird | < 1:115.15.0-1~deb11u1 | thunderbird_1:115.15.0-1~deb11u1_all.deb |
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%