Spoofing attack in Mozilla Firefox - CVE-2018-5121
Published: January 24, 2018
Vulnerability identifier: #VU10194
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-5121
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to conduct spoofing attack.
The vulnerability exists due to an error when OS X Tibetan characters are clipped when rendered in the addressbar. A remote attacker can trick the victim into visiting a specially crafted website conduct domain name spoofing attacks.
Affected software
Mozilla Firefox
How to mitigate CVE-2018-5121
Update to version 58.0.