Medium severity6.5NVD Advisory· Published Jul 22, 2025· Updated Apr 13, 2026
CVE-2025-8027
CVE-2025-8027
Description
On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Affected products
4cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <115.26.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <141.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <128.13.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <141.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- www.mozilla.org/security/advisories/mfsa2025-56/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-57/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-58/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-59/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-61/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-62/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-63/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
- lists.debian.org/debian-lts-announce/2025/07/msg00016.htmlnvd
News mentions
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