CVE catalog

CVE-2015-2722

UBUNTU-

Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 allows remote attackers to execute arbitrary code via vectors involving attachment of an XMLHttpRequest object to a shared worker.

Severity: Unknown
Published: Jul 2, 2015, 12:00:00 AM UTC
Updated: Apr 22, 2026, 10:05:53 AM UTC
Source: [NVD] · [CVE record]
EPSS: 6.14% · 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 / release	Package	Version	Status	Source
Ubuntu14.04	firefox	`24.0+build1-0ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`25.0+build3-0ubuntu0.13.10.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0+build1-0ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0+build2-0ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0+build2-0ubuntu2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0~b2+build1-0ubuntu2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`29.0+build1-0ubuntu0.14.04.2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`30.0+build1-0ubuntu0.14.04.3`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`31.0+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`32.0+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`32.0.3+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`33.0+build2-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC

Showing 12 observations. All 23 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Ubuntu14.04	firefox	`24.0+build1-0ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`25.0+build3-0ubuntu0.13.10.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0+build1-0ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0+build2-0ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0+build2-0ubuntu2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`28.0~b2+build1-0ubuntu2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`29.0+build1-0ubuntu0.14.04.2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`30.0+build1-0ubuntu0.14.04.3`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`31.0+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`32.0+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`32.0.3+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`33.0+build2-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`34.0+build2-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`35.0+build3-0ubuntu0.14.04.2`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`35.0.1+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`36.0+build2-0ubuntu0.14.04.4`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`36.0.1+build2-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`36.0.4+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`37.0+build2-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`37.0.1+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`37.0.2+build1-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`38.0+build3-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC
Ubuntu14.04	firefox	`39.0+build5-0ubuntu0.14.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2015-2722]Apr 22, 2026, 10:05:53 AM UTC

Original provider fields

{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "firefox",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "39.0+build5-0ubuntu0.14.04.1"
            }
          ]
        }
      ],
      "release": "14.04",
      "versions": [
        "24.0+build1-0ubuntu1",
        "25.0+build3-0ubuntu0.13.10.1",
        "28.0~b2+build1-0ubuntu2",
        "28.0+build1-0ubuntu1",
        "28.0+build2-0ubuntu1",
        "28.0+build2-0ubuntu2",
        "29.0+build1-0ubuntu0.14.04.2",
        "30.0+build1-0ubuntu0.14.04.3",
        "31.0+build1-0ubuntu0.14.04.1",
        "32.0+build1-0ubuntu0.14.04.1",
        "32.0.3+build1-0ubuntu0.14.04.1",
        "33.0+build2-0ubuntu0.14.04.1",
        "34.0+build2-0ubuntu0.14.04.1",
        "35.0+build3-0ubuntu0.14.04.2",
        "35.0.1+build1-0ubuntu0.14.04.1",
        "36.0+build2-0ubuntu0.14.04.4",
        "36.0.1+build2-0ubuntu0.14.04.1",
        "36.0.4+build1-0ubuntu0.14.04.1",
        "37.0+build2-0ubuntu0.14.04.1",
        "37.0.1+build1-0ubuntu0.14.04.1",
        "37.0.2+build1-0ubuntu0.14.04.1",
        "38.0+build3-0ubuntu0.14.04.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2015-2722",
      "fixed_version": "39.0+build5-0ubuntu0.14.04.1",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2015-2722",
      "provider_updated_at": "2026-04-22T10:05:53.135574Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed: Oct 23, 2026, 5:14:42 PM UTC

References

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