CVE-2020-26977 — Mozilla Firefox vulnerability

4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 40.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedJan 7
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages4 packages

▶CVEListV5mozilla/firefoxunspecified — 84
▶NVDmozilla/firefox< 84.0
▶mozillamozilla/firefox

🔴Vulnerability Details

1
GHSA
GHSA-qx8w-qf9q-g5vp: 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↗2022-05-24
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📋Vendor Advisories

2
Debian
CVE-2020-26977: firefox - By attempting to connect a website using an unresponsive port, an attacker could...↗2020
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Mozilla
Mozilla Foundation Security Advisory 2020-54: CVE-2020-26977↗
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