{"id":"CVE-2025-1933","details":"On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability affects Firefox \u003c 136, Firefox ESR \u003c 115.21, Firefox ESR \u003c 128.8, Thunderbird \u003c 136, and Thunderbird \u003c 128.8.","modified":"2026-04-16T04:32:32.876014429Z","published":"2025-03-04T14:15:38.170Z","related":["ALSA-2025:2359","ALSA-2025:2452","SUSE-SU-2025:0783-1","SUSE-SU-2025:0788-1","SUSE-SU-2025:0849-1","openSUSE-SU-2025:14852-1","openSUSE-SU-2025:14853-1","openSUSE-SU-2025:14861-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2025-15/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2025-16/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2025-17/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2025-18/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2025-14/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1946004"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"115.21.0"}]},{"events":[{"introduced":"0"},{"fixed":"136.0"}]},{"events":[{"introduced":"116.0"},{"fixed":"128.8.0"}]},{"events":[{"introduced":"0"},{"fixed":"128.8"}]},{"events":[{"introduced":"129.0"},{"fixed":"136.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1933.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"}]}