CVE-2025-11153: Vulnerability in Mozilla Firefox
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.
AI Analysis
Technical Summary
This vulnerability concerns a JIT miscompilation bug in the JavaScript engine's JIT component of Mozilla Firefox. The issue was identified and reported by Nan Wang and is tracked as CVE-2025-11153. It was addressed by Mozilla in Firefox version 143.0.3 as part of security advisory MFSA2025-80. The CVSS v3.1 base score is 7.5, indicating a high impact with network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality impact, but high integrity impact and no availability impact.
Potential Impact
The vulnerability allows an attacker to cause a high integrity impact on the JavaScript engine through JIT miscompilation, potentially leading to incorrect code execution or other integrity violations. There is no confidentiality or availability impact reported. No exploits are currently known in the wild.
Mitigation Recommendations
A fix is available and has been incorporated in Mozilla Firefox version 143.0.3. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2025-11153: Vulnerability in Mozilla Firefox
Description
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns a JIT miscompilation bug in the JavaScript engine's JIT component of Mozilla Firefox. The issue was identified and reported by Nan Wang and is tracked as CVE-2025-11153. It was addressed by Mozilla in Firefox version 143.0.3 as part of security advisory MFSA2025-80. The CVSS v3.1 base score is 7.5, indicating a high impact with network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality impact, but high integrity impact and no availability impact.
Potential Impact
The vulnerability allows an attacker to cause a high integrity impact on the JavaScript engine through JIT miscompilation, potentially leading to incorrect code execution or other integrity violations. There is no confidentiality or availability impact reported. No exploits are currently known in the wild.
Mitigation Recommendations
A fix is available and has been incorporated in Mozilla Firefox version 143.0.3. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- mozilla
- Date Reserved
- 2025-09-29T13:22:49.000Z
- Cvss Version
- null
- State
- PUBLISHED
Threat ID: 68dc71325d588c52e5de4795
Added to database: 10/1/2025, 12:09:22 AM
Last enriched: 4/14/2026, 11:34:51 AM
Last updated: 5/10/2026, 5:36:53 AM
Views: 585
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