CVE-2025-8027
July 23, 2025, 2:15 p.m.
6.5
Medium
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 affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Mozilla |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-457
Use of Uninitialized Variable
The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | mozilla | firefox | <141 | / | / | / | / | / | / | / |
| a | mozilla | firefox | esr | <115.26 | / | / | / | / | / | / |
| a | mozilla | firefox | esr | <128.13 | / | / | / | / | / | / |
| a | mozilla | firefox | esr | <140.1 | / | / | / | / | / | / |
| a | mozilla | thunderbird | <141 | / | / | / | / | / | / | / |
| a | mozilla | thunderbird | <128.13 | / | / | / | / | / | / | / |
| a | mozilla | thunderbird | <140.1 | / | / | / | / | / | / | / |
References
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: LOW
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: NONE
- Availability Impact: NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Timeline
Published: July 22, 2025, 9:15 p.m.
Last Modified: July 23, 2025, 2:15 p.m.
Last Modified: July 23, 2025, 2:15 p.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
security@mozilla.org
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.