CVEvulnerability
CVE-2025-8027
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-07-22
- Last modified
- 2026-10-05
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-457
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 configurations
• mozilla firefox (< 115.26.0)
• mozilla firefox (< 141.0)
• mozilla firefox (>= 128.0 < 128.13.0)
• mozilla firefox (>= 140.0 < 140.1.0)
• mozilla thunderbird (< 128.13.0)
• mozilla thunderbird (< 141.0)
• mozilla thunderbird (>= 140.0 < 140.1.0)
Related
Weakness · CWE (1)
- CWE-457 Use of Uninitialized Variable weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1968423 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-56/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-57/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-58/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-59/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-61/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-62/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-63/ Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html lists.debian.org