CVE-2020-26978

CVE-2020-26978

EPSS 1.3%

Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1677047 https://www.mozilla.org/security/advisories/mfsa2020-54/https://www.mozilla.org/security/advisories/mfsa2020-55/https://www.mozilla.org/security/advisories/mfsa2020-56/