Mashupmark

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 110 Thunderbird versions prior to 102.8 Firefox ESR versions prior to 102.8 **Description** The issue is related to the validation of members of the `DEVMODEW` struct set by the printer device driver, which could result in invalid values and cause out of bounds access to related variables. This could potentially allow a remote attacker to execute arbitrary code. The estimated number of potentially affected devices is not specified. This issue only affects Firefox on Windows, while other operating systems are unaffected. **Recommendations** For Firefox versions prior to 110, update to version 110 or later. For Thunderbird versions prior to 102.8, update to version 102.8 or later. For Firefox ESR versions prior to 102.8, update to version 102.8 or later.