#VU53714 Resource management error in Firefox for Android

Published: 2021-06-01

Vulnerability identifier: #VU53714

Vulnerability risk: Medium


CVE-ID: CVE-2021-29962


Exploitation vector: Network

Exploit availability:

Vulnerable software:
Firefox for Android
Mobile applications / Apps for mobile phones

Vendor: Mozilla


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application when processing multiple popups. A remote attacker can create a specially crafted webpage that opens multiple popups, which would make the Firefox for Android become unstable and hard-to-recover.

Install updates from vendor's website.

Vulnerable software versions

Firefox for Android: 80.1.2 - 88.1.4

Fixed software versions


External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

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