CVE-2023-25734
HighCVSS 8.1Exploitation Probability (EPSS)
Elevated risk55th percentile - higher than 55% of all known CVEs
Summary
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. This also had the potential to leak NTLM credentials to the resource. This bug only affects Firefox on Windows. Other operating systems are unaffected. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Risk Assessment
An attacker could force network requests and capture NTLM credentials, potentially leading to privilege escalation within the network. The threat affects Firefox users on Windows.
Recommendation
Upgrade Firefox to version 110, Thunderbird to 102.8, Firefox ESR to 102.8 or later. Exercise caution when opening .url files from untrusted sources.
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Original NVD description (English source)
After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS