CVE-2023-25734

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 110 Thunderbird versions prior to 102.8 Firefox ESR versions prior to 102.8

Description The issue is related to incorrect external management of a file name or path, which could allow a remote attacker to impact the confidentiality and integrity of protected information. After downloading a Windows .url shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system, potentially leaking NTLM credentials to the resource. This bug only affects Firefox on Windows, with other operating systems being unaffected.

Recommendations For Firefox versions prior to 110, update to version 110 or later. For Thunderbird versions prior to 102.8, update to version 102.8 or later. For Firefox ESR versions prior to 102.8, update to version 102.8 or later.