High

Analysis Summary

CVE-2025-23109 CVSS:6.5

Mozilla Firefox for iOS could allow a remote attacker to conduct spoofing attacks, caused by an error when using long hostnames in URLs. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the address bar.

CVE-2025-23108 CVSS:6.5

Mozilla Firefox for iOS could allow a remote attacker to conduct spoofing attacks, caused by an error when opening Javascript links in a new tab via long-press. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL of the new tab.

CVE-2025-0240 CVSS:6.5

Mozilla Firefox could allow a remote attacker to bypass security restrictions, caused by a compartment mismatch when parsing JavaScript JSON module. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to bypass security restrictions.

Impact

• Security Bypass
• Gain Access

Indicators of Compromise

CVE

• CVE-2025-23109

• CVE-2025-23108

• CVE-2025-0240

Affected Vendors

Remediation

Upgrade to the latest version of Firefox, available from the Mozilla Website.

CVE-2025-23109

CVE-2025-23108

CVE-2025-0240