Every CVE Search/ Get API key

CVE-2020-6828

A malicious Android application could craft an Intent that would have been processed by Firefox...

7.5 High

A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.<br> Note: This issue only affects Firefox for Android. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.7.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

1.51%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.<br> Note: This issue only affects Firefox for Android. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.7.

Record
CVE-2020-6828
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Weakness
CWE-22
Updated
2026-11-02
CVE List No score

A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.<br> Note: This issue only affects Firefox for Android. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.7.

Record
CVE-2020-6828
Updated
2026-11-02
EUVDEUVD-2020-27972 No score

A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.<br> Note: This issue only affects Firefox for Android. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.7.

Record
EUVD-2020-27972
Updated
2026-11-03
GitHub AdvisoriesGHSA-9562-p32f-jq35 7.5

A malicious Android application could craft an Intent that would have been processed by Firefox...

A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.<br> Note: This issue only affects Firefox for Android. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.7.

Record
GHSA-9562-p32f-jq35
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-22, CWE-119
Updated
2026-11-02
OSVopenSUSE-SU-2020:0493-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 68.7.0 ESR fixes the following issues:

  • CVE-2020-6821: Uninitialized memory could be read when using the WebGL copyTexSubImage method (bsc#1168874).
  • CVE-2020-6822: Fixed out of bounds write in GMPDecodeData when processing large images (bsc#1168874).
  • CVE-2020-6825: Fixed Memory safety bugs (bsc#1168874).
  • CVE-2020-6827: Custom Tabs could have the URI spoofed (bsc#1168874).
  • CVE-2020-6828: Preference overwrite via crafted Intent (bsc#1168874).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:0493-1
Updated
2026-11-02
OSVSUSE-SU-2020:0971-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 68.7.0 ESR fixes the following issues:

  • CVE-2020-6821: Uninitialized memory could be read when using the WebGL copyTexSubImage method (bsc#1168874).
  • CVE-2020-6822: Fixed out of bounds write in GMPDecodeData when processing large images (bsc#1168874).
  • CVE-2020-6825: Fixed Memory safety bugs (bsc#1168874).
  • CVE-2020-6827: Custom Tabs could have the URI spoofed (bsc#1168874).
  • CVE-2020-6828: Preference overwrite via crafted Intent (bsc#1168874).
Record
SUSE-SU-2020:0971-1
Updated
2026-11-02
OSVSUSE-SU-2020:0978-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 68.7.0 ESR fixes the following issues:

  • CVE-2020-6821: Uninitialized memory could be read when using the WebGL copyTexSubImage method (bsc#1168874).
  • CVE-2020-6822: Fixed out of bounds write in GMPDecodeData when processing large images (bsc#1168874).
  • CVE-2020-6825: Fixed Memory safety bugs (bsc#1168874).
  • CVE-2020-6827: Custom Tabs could have the URI spoofed (bsc#1168874).
  • CVE-2020-6828: Preference overwrite via crafted Intent (bsc#1168874).
Record
SUSE-SU-2020:0978-1
Updated
2026-11-02
OSVSUSE-SU-2020:14339-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to version 68.7.0 ESR fixes the following issues:

  • CVE-2020-6821: Uninitialized memory could be read when using the WebGL copyTexSubImage method (bsc#1168874).
  • CVE-2020-6822: Fixed out of bounds write in GMPDecodeData when processing large images (bsc#1168874).
  • CVE-2020-6825: Fixed Memory safety bugs (bsc#1168874).
  • CVE-2020-6827: Custom Tabs could have the URI spoofed (bsc#1168874).
  • CVE-2020-6828: Preference overwrite via crafted Intent (bsc#1168874).
Record
SUSE-SU-2020:14339-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP1
From an advisory covering 5 CVEs
 before 68.7.0-3.84.2
68.7.0-3.84.2
MozillaFirefox
SUSE:HPE Helion OpenStack 8
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:OpenStack Cloud 7
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:OpenStack Cloud 8
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:OpenStack Cloud Crowbar 8
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Software Development Kit 12 SP4
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Software Development Kit 12 SP5
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
Show 12 moreShow less
Affected packages
PackageAffectedFixed
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP1-LTSS
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP2-LTSS
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP3-LTSS
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP3-BCL
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP4
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Enterprise Storage 5
From an advisory covering 5 CVEs
 before 68.7.0-109.116.1
68.7.0-109.116.1
MozillaFirefox
SUSE:Linux Enterprise Server 11 SP4-LTSS
From an advisory covering 5 CVEs
 before 68.7.0-78.70.1
68.7.0-78.70.1
MozillaFirefox
openSUSE:Leap 15.1
From an advisory covering 5 CVEs
 before 68.7.0-lp151.2.42.1
68.7.0-lp151.2.42.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-6828 is a high vulnerability (CVSS 7.5) in Mozilla Firefox Esr, published April 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. No source names a fixed version.

References

Show 8 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open