Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
History

Tue, 19 May 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1021
CWE-200

Tue, 19 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151. Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
References

Tue, 19 May 2026 16:15:00 +0000

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

Tue, 19 May 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1021
CWE-200

Tue, 19 May 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-451
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 19 May 2026 13:45:00 +0000

Type Values Removed Values Added
Description Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151.
Title Spoofing issue in the Popup Blocker component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-05-19T17:10:54.077Z

Reserved: 2026-05-19T12:30:07.287Z

Link: CVE-2026-8964

cve-icon Vulnrichment

Updated: 2026-05-19T14:59:14.349Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-19T14:16:52.823

Modified: 2026-05-19T18:16:35.773

Link: CVE-2026-8964

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T19:30:12Z