CVE-2021-29983 : Firefox for Android could get stuck in fullscreen mode and not exit it even afte

Firefox for Android could get stuck in fullscreen mode and not exit it even after normal interactions that should cause it to exit. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91.

Published 2021-08-17 20:15:08

Updated 2021-08-25 14:35:15

Source Mozilla Corporation

View at NVD, CVE.org

Products affected by CVE-2021-29983

Mozilla » Firefox
Versions before (<) 91.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Matching versions
When used together with: Google » Android » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-29983

EPSS FAQ

0.29%

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

~ 52 %

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

CVSS scores for CVE-2021-29983

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: High Availability: None

References for CVE-2021-29983

https://bugzilla.mozilla.org/show_bug.cgi?id=1719088

Access Denied
Issue Tracking;Permissions Required;Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-33/

Security Vulnerabilities fixed in Firefox 91 — Mozilla
Vendor Advisory

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Vulnerability Details : CVE-2021-29983

Products affected by CVE-2021-29983

Exploit prediction scoring system (EPSS) score for CVE-2021-29983

CVSS scores for CVE-2021-29983

References for CVE-2021-29983