Description
Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
Published: 2026-05-07
Score: 7.3 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4575-1 firefox-esr security update
Debian DLA Debian DLA DLA-4582-1 thunderbird security update
Debian DSA Debian DSA DSA-6254-1 firefox-esr security update
Debian DSA Debian DSA DSA-6267-1 thunderbird security update
History

Sat, 09 May 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Important


Fri, 08 May 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
Vendors & Products Mozilla thunderbird

Fri, 08 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2. Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
References

Thu, 07 May 2026 15:00:00 +0000

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

Thu, 07 May 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

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


Thu, 07 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2.
Title Use-after-free in the DOM: Networking component
References

Subscriptions

Mozilla Firefox Thunderbird
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-05-08T12:19:00.246Z

Reserved: 2026-05-07T12:45:04.220Z

Link: CVE-2026-8090

cve-icon Vulnrichment

Updated: 2026-05-07T13:48:59.592Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-07T13:16:13.967

Modified: 2026-05-08T20:08:50.323

Link: CVE-2026-8090

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-07T12:45:04Z

Links: CVE-2026-8090 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-09T03:30:24Z

Weaknesses