Description
JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Published: 2026-09-29
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 01 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94

Thu, 01 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-843
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 01:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94

Thu, 01 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Wed, 30 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 157. JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
References

Wed, 30 Sep 2026 09:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Wed, 30 Sep 2026 02:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-62

Tue, 29 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-62

Tue, 29 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 157.
Title JIT miscompilation in the JavaScript Engine component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-01T14:52:34.839Z

Reserved: 2026-09-26T19:17:25.865Z

Link: CVE-2026-100793

cve-icon Vulnrichment

Updated: 2026-10-01T14:51:47.852Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T13:17:44.340

Modified: 2026-10-01T15:17:19.063

Link: CVE-2026-100793

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T23:15:16Z

Weaknesses