CVE-2025-3028: JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. CVE-2025-3029: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. CVE-2025-3030: Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. 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-2025-3031: An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. CVE-2025-3032: Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. CVE-2025-3034: Memory safety bugs present in Firefox 136 and Thunderbird 136. 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. Thunderbird ESR 128.9: https://www.mozilla.org/en-US/security/advisories/mfsa2025-24/ Thunderbird 137: https://www.mozilla.org/en-US/security/advisories/mfsa2025-23/ Firefox ESR 128.9: https://www.mozilla.org/en-US/security/advisories/mfsa2025-22/ Firefox 137: https://www.mozilla.org/en-US/security/advisories/mfsa2025-20/
