Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-29952 |
CWE-ID | CWE-362 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Mozilla Firefox Client/Desktop applications / Web browsers |
Vendor | Mozilla |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU52899
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-29952
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in Web Render components. A remote attacker can create a specially crafted web page, trick the victim into opening it and execute arbitrary code on the system.
Install updates from vendor's website.
Vulnerable software versionsMozilla Firefox: 80.0 - 88.0
External linkshttp://www.mozilla.org/en-US/security/advisories/mfsa2021-20/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.