CVE-2020-26977

MediumCVSS 6.5/10Last modified Aug 19, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected software

VendorProductVersions
MozillaFirefox>= unspecified, < 84

References

Timeline

Published
Jan 7, 2021
Last modified
Aug 19, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-269786.1Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as sCVE-2020-269796.1When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event andCVE-2020-26987.5Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are PriorCVE-2020-269808.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269816.5A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). When opening a speCVE-2020-269828.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269838.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269848.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269858.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269868.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269878.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicatiCVE-2020-269888.8A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applicati
CVE-2020-26977: Medium severity, CVSS 6.5 | Vulnix