CVE-2026-84126: Vulnerability in Mozilla Firefox
Incorrect boundary conditions in the Layout: Grid component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
CVE-2026-84126: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the Layout: Grid component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
CVSS v3.1
Score 4.3medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-01T07:25:23.294Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-82/","vendor":"Mozilla"}]
Threat ID: 6a96cab0acd9273b49b6854c
Added to database: 09/01/2026, 12:53:04 UTC
Last updated: 09/02/2026, 02:09:54 UTC
Views: 8
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