CVE catalog

CVE-2020-26964

UBUNTU-

[CVE catalog]

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.

Severity
Medium · CVSS 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.93% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Ubuntu20.04mozjs5252.9.1-1build1Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs5252.9.1-1ubuntu3Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.5.0-1~fakesyncAffected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.5.0-2~fakesyncAffected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.6.0-1Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.6.0-1ubuntu1Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu1Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu3Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu4Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.3.1-0ubuntu3Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.3.1-7fakesync1Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.8.1-0ubuntu0.18.04.1Affected[UBUNTU-CVE-2020-26964]

Showing 12 observations. All 13 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu1Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu3Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu4Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.3.1-0ubuntu3Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.3.1-7fakesync1Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.8.1-0ubuntu0.18.04.1Affected[UBUNTU-CVE-2020-26964]
Ubuntu18.04mozjs5252.9.1-0ubuntu0.18.04.1Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs5252.9.1-1build1Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs5252.9.1-1ubuntu3Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.5.0-1~fakesyncAffected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.5.0-2~fakesyncAffected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.6.0-1Affected[UBUNTU-CVE-2020-26964]
Ubuntu20.04mozjs6868.6.0-1ubuntu1Affected[UBUNTU-CVE-2020-26964]
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "mozjs52",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "52.3.1-0ubuntu3",
        "52.3.1-7fakesync1",
        "52.8.1-0ubuntu0.18.04.1",
        "52.9.1-0ubuntu0.18.04.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-26964",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-26964",
      "provider_updated_at": "2026-04-22T12:37:22.491672Z"
    },
    {
      "name": "mozjs38",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "38.8.0~repack1-0ubuntu1",
        "38.8.0~repack1-0ubuntu3",
        "38.8.0~repack1-0ubuntu4"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-26964",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-26964",
      "provider_updated_at": "2026-04-22T12:37:22.491672Z"
    },
    {
      "name": "mozjs68",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "68.5.0-1~fakesync",
        "68.5.0-2~fakesync",
        "68.6.0-1",
        "68.6.0-1ubuntu1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-26964",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-26964",
      "provider_updated_at": "2026-04-22T12:37:22.491672Z"
    },
    {
      "name": "mozjs52",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "52.9.1-1build1",
        "52.9.1-1ubuntu3"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-26964",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-26964",
      "provider_updated_at": "2026-04-22T12:37:22.491672Z"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]