Read the docs
TI-2020-16398 Aliases CVE-2020-26975GHSA-cmfr-9hrr-hpg4

When a malicious application installed on the user's device broadcast an Intent to…

Priority LOW 30Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00875 59th percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 84

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 8484Patch availableCNA
  • Firefox VendorMozilla Affected before 84 Fixed in 84 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:android:*:*before 84.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:android:*:* Versions before 84.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 84

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 84

    13 records Highest priority Priority MEDIUM 7 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2020-16395 Use after free in Mozilla FirefoxPriority MEDIUM 45
    • TI-2020-16394 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 42
    • TI-2020-17831 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 41
    Show all 13 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26975
  2. 2026-10-03 Alias added: GHSA-cmfr-9hrr-hpg4

References

Advisory 1

Other 1

  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2022-09831 Use after free in Mozilla Firefox KEVCVSS 3.1HIGH 8.8
  • TI-2023-13905 Race condition in Mozilla Firefox for Android CVSS 3.1HIGH 7.5
  • TI-2023-13916 A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization… CVSS 3.1MEDIUM 6.5
  • TI-2023-13903 Following a Garbage Collector compaction, weak maps may have been accessed before they… CVSS 3.1MEDIUM 6.5
  • TI-2022-13642 Information disclosure in Mozilla Firefox for iOS CVSS 3.1MEDIUM 6.5
See all 86 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences