CVE-2025-55031 Passkey phishing within Bluetooth range
Attackers within Bluetooth range can trick users into logging in to attacker-controlled devices via malicious pages, leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55031?
CVE-2025-55031 is a critical vulnerability in Mozilla Firefox, published on 19 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An attacker within Bluetooth range could have used this to trick the user into using their passkey to log the attacker's computer into the target account. This vulnerability was fixed in Firefox for iOS 142 and Focus for iOS 142.
Weakness: CWE-601
Which versions are affected by CVE-2025-55031?
It affects 2 products.
Products include Mozilla Firefox, Mozilla Firefox Focus.
How do I fix CVE-2025-55031?
No fix has been published for CVE-2025-55031 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-55031 being exploited?
There is no known exploitation of CVE-2025-55031 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-6rx2-wjr5-47v3.