CVE-2025-1938: Memory safety bugs present in Firefox 135,
Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7.
Some of these bugs showed evidence of memory corruption and
we presume that with enough effort some of these could have
been exploited to run arbitrary code.
CVE-2025-1935: A web page could trick a user into setting
that site as the default handler for a custom URL protocol.
CVE-2025-1934: It was possible to interrupt the processing
of a RegExp bailout and run additional JavaScript, potentially
triggering garbage collection when the engine was not
expecting it.