Vulnerability Monitor

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CVE-2015-2733

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 dedicated worker.

Security Impact Summary

CVE-2015-2733 is a security vulnerability that . Impacting 5 products from mozilla, from oracle, from mozilla and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-07-06T02:01:02.937

Last Modified

2026-05-06T22:30:45.220

Status

Modified

Source

[email protected]

Severity

CVSSv2: 10.0 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	≤ 38.1.0	Yes
Operating System	oracle	solaris	11.3	Yes
Application	mozilla	firefox	31.0	Yes
Application	mozilla	firefox	31.1.0	Yes
Application	mozilla	firefox	31.1.1	Yes
Application	mozilla	firefox	31.3.0	Yes
Application	mozilla	firefox	31.5.1	Yes
Application	mozilla	firefox	31.5.2	Yes
Application	mozilla	firefox	31.5.3	Yes
Application	mozilla	firefox	38.0	Yes
Application	mozilla	firefox_esr	31.1	Yes
Application	mozilla	firefox_esr	31.2	Yes
Application	mozilla	firefox_esr	31.3	Yes
Application	mozilla	firefox_esr	31.4	Yes
Application	mozilla	firefox_esr	31.5	Yes
Application	mozilla	firefox_esr	31.6.0	Yes
Application	mozilla	firefox_esr	31.7.0	Yes
Operating System	novell	suse_linux_enterprise_desktop	11	Yes
Operating System	novell	suse_linux_enterprise_desktop	12.0	Yes
Operating System	novell	suse_linux_enterprise_server	12.0	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html ([email protected])
http://rhn.redhat.com/errata/RHSA-2015-1207.html ([email protected])
http://www.mozilla.org/security/announce/2015/mfsa2015-65.html Vendor Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/75541 ([email protected])
http://www.securitytracker.com/id/1032783 ([email protected])
http://www.securitytracker.com/id/1032784 ([email protected])
http://www.ubuntu.com/usn/USN-2656-1 ([email protected])
http://www.ubuntu.com/usn/USN-2656-2 ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1169867 Issue Tracking ([email protected])
https://security.gentoo.org/glsa/201512-10 ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2015-1207.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.mozilla.org/security/announce/2015/mfsa2015-65.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/75541 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1032783 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1032784 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2656-1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2656-2 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=1169867 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201512-10 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mozilla's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.