Description
When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Published: 2023-09-11
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-54437 When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Ubuntu USN Ubuntu USN USN-6320-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-6405-1 Thunderbird vulnerabilities
History

Thu, 18 Dec 2025 15:30:00 +0000

Type Values Removed Values Added
Title Mozilla: Browsing Context potentially not cleared when closing Private Window Browsing Context potentially not cleared when closing Private Window

Thu, 19 Sep 2024 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-754
Metrics ssvc

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


Subscriptions

Mozilla Firefox Firefox Esr Thunderbird
Redhat Enterprise Linux Rhel Aus Rhel E4s Rhel Eus Rhel Tus
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-12-18T15:23:17.682Z

Reserved: 2023-08-29T03:37:00.389Z

Link: CVE-2023-4583

cve-icon Vulnrichment

Updated: 2024-08-02T07:31:06.553Z

cve-icon NVD

Status : Modified

Published: 2023-09-11T09:15:09.680

Modified: 2024-11-21T08:35:28.857

Link: CVE-2023-4583

cve-icon Redhat

Severity : Low

Publid Date: 2023-08-29T00:00:00Z

Links: CVE-2023-4583 - Bugzilla

cve-icon OpenCVE Enrichment

No data.