Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2020-26961

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.6%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
Products affected by CVE-2020-26961


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