Medium severity6.5NVD Advisory· Published Jan 7, 2021· Updated Aug 19, 2026
CVE-2020-26977
CVE-2020-26977
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.
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Affected products
5- Range: <84
- osv-coords2 versionspkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed
< 92.0-1.2+ 1 more
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 128.5.1-1.1
unspecified+ 1 more
- (no CPE)range: unspecified
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*range: <84.0
Patches
Vulnerability mechanics
References
2- www.mozilla.org/security/advisories/mfsa2020-54/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
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