CVE-2021-29993 : Firefox for Android allowed navigations through the `intent://` protocol, which

Firefox for Android allowed navigations through the `intent://` protocol, which could be used to cause crashes and UI spoofs. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 92.

Published 2021-11-03 01:15:07

Updated 2021-11-04 20:56:52

Source Mozilla Corporation

View at NVD, CVE.org

Products affected by CVE-2021-29993

Mozilla » Firefox » For Android
Versions before (<) 92.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-29993

EPSS FAQ

0.40%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 60 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-29993

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.8	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:P	8.6	4.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial
8.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H	2.8	5.2	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: High Availability: High

References for CVE-2021-29993

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1712242%2C1708767%2C1712240%2C1708544%2C1729259

Bug List
Broken Link
https://www.mozilla.org/security/advisories/mfsa2021-38/

Security Vulnerabilities fixed in Firefox 92 — Mozilla
Vendor Advisory

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Vulnerability Details : CVE-2021-29993

Products affected by CVE-2021-29993

Exploit prediction scoring system (EPSS) score for CVE-2021-29993

CVSS scores for CVE-2021-29993

References for CVE-2021-29993