Description
When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.
Published: 2022-12-22
Score: 7.5 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-2942-1 firefox-esr security update
Debian DLA Debian DLA DLA-2961-1 thunderbird security update
Debian DSA Debian DSA DSA-5097-1 firefox-esr security update
Debian DSA Debian DSA DSA-5106-1 thunderbird security update
EUVD EUVD EUVD-2022-30946 When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.
Ubuntu USN Ubuntu USN USN-5321-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5321-2 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5345-1 Thunderbird vulnerabilities
History

Tue, 15 Apr 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Subscriptions

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

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-04-15T20:10:42.269Z

Reserved: 2022-03-03T00:00:00.000Z

Link: CVE-2022-26387

cve-icon Vulnrichment

Updated: 2024-08-03T05:03:32.862Z

cve-icon NVD

Status : Modified

Published: 2022-12-22T20:15:22.340

Modified: 2025-04-15T21:15:46.117

Link: CVE-2022-26387

cve-icon Redhat

Severity : Important

Publid Date: 2022-03-08T00:00:00Z

Links: CVE-2022-26387 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses