CVE-2020-26977 Other in Firefox
Attackers can spoof the URL bar in Firefox for Android by connecting to unresponsive ports, misleading users about the active site.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-26977?
CVE-2020-26977 is a medium-severity vulnerability in Mozilla Firefox Mobile, published on 7 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
By attempting to connect a website using an unresponsive port, an attacker could have controlled the content of a tab while the URL bar displayed the original domain. *Note: This issue only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84.
Which versions are affected by CVE-2020-26977?
It affects 1 product.
Products include Mozilla Firefox Mobile.
How do I fix CVE-2020-26977?
Upgrade to a fixed version.
Is CVE-2020-26977 being exploited?
There is no known exploitation of CVE-2020-26977 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox Mobile
Sources
Also known as GHSA-qx8w-qf9q-g5vp.