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CVE-2020-26961

Mozilla / Firefox PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefoxaffected < 83
Mozilla / Firefox ESRaffected < 78.5
Mozilla / Thunderbirdaffected < 78.5

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.