Members of the `DEVMODEW` struct set by the printer device driver weren't being validated and could have resulted in invalid values which in turn would cause the browser to attempt out of bounds access to related variables. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2023-06/#CVE-2023-25738
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2023-25738