CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS
Percentile
89.9%
An anonymous security researcher working with Trend Micro’s Zero Day Initiative reported a buffer overflow in the ClearKey Content Decryption Module (CDM) used by the Encrypted Media Extensions (EME) API. This vulnerability can be triggered using a malformed video file due to incorrect error handling. This could allow arbitrary code execution if combined with a second vulnerability that allows an escape from the Gecko Media Plugin (GMP) sandbox. Without such a vulnerability, the buffer overflow is contained within the GMP sandbox and cannot be exploited.
Vendor | Product | Version | CPE |
---|---|---|---|
mozilla | firefox | * | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
mozilla | firefox_esr | * | cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS
Percentile
89.9%