CVE-2020-26975: mozilla firefox
Vulnerability summary
CVE-2020-26975 is a medium (CVSS 6.5) vulnerability in mozilla firefox. EPSS estimates a 0.88% chance of exploitation in the next 30 days, higher than 58.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 07-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
When a malicious application installed on the user's device broadcast an Intent to Firefox for Android, arbitrary headers could have been specified, leading to attacks such as abusing ambient authority or session fixation. This was resolved by only allowing certain safe-listed headers. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.88%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
+0.02 pp
From 0.86% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Mozilla2 products
- firefox≥ unspecified, < 84
- firefox_mobile< 84.0
1 vendor · 2 products