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CVE-2021-23963

Date: February 25, 2021

When sharing geolocation during an active WebRTC share, Firefox could have reset the webRTC sharing state in the user interface, leading to loss of control over the currently granted permission. This vulnerability affects Firefox < 85.

Severity Score

Related Resources (6)

https://security.alpinelinux.org/vuln/CVE-2021-23963
https://bugzilla.mozilla.org/show_bug.cgi?id=1680793
https://nvd.nist.gov/vuln/detail/CVE-2021-23963
https://www.mozilla.org/security/advisories/mfsa2021-03/
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-23963
https://www.mend.io/vulnerability-database/CVE-2021-23963

Severity Score

Weakness Type (CWE)

Improper Preservation of Permissions

CWE-281

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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