CVE-2020-26964
Summary
| CVE | CVE-2020-26964 |
|---|---|
| State | PUBLISHED |
| Assigner | mozilla |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-12-09 01:15:13 UTC |
| Updated | 2026-08-19 15:29:21 UTC |
| Description | If the Remote Debugging via USB feature was enabled in Firefox for Android on an Android version prior to Android 6.0, untrusted apps could have connected to the feature and operated with the privileges of the browser to read and interact with web content. The feature was implemented as a unix domain socket, protected by the Android SELinux policy; however, SELinux was not enforced for versions prior to 6.0. This was fixed by removing the Remote Debugging via USB feature from affected devices. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 83. |
Risk And Classification
Primary CVSS: v3.1 6.8 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS: 0.009100000 probability, percentile 0.572000000 (date 2026-08-19)
Problem Types: NVD-CWE-noinfo | Firefox for Android's Remote Debugging via USB could have been abused by untrusted apps on older versions of Android
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.8 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N |
| 2.0 | [email protected] | Primary | 4 | AV:N/AC:H/Au:N/C:P/I:P/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
HighAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
NoneAV:N/AC:H/Au:N/C:P/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Android | All | All | All | All | |
| Application | Mozilla | Firefox Mobile | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Security Vulnerabilities fixed in Firefox 83 — Mozilla | af854a3a-2127-422b-91ae-364da2661108 | www.mozilla.org | Vendor Advisory |
| 1658865 - (CVE-2020-26964) Untrusted apps can connect Fenix's remote debugging socket on older Android devices | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.mozilla.org | Issue Tracking, Permissions Required, Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.