CRITICAL
CVE-2015-2722
NVD-CWE-OtherPublished: July 6, 2015· Updated: Jun 17, 2026
10.0
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2015-2722 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (32)
→
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.htmlThird Party Advisory
→
→
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
→
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
→
https://bugzilla.mozilla.org/show_bug.cgi?id=1166924Issue Tracking · Vendor Advisory
Quick Facts
CVE IDCVE-2015-2722
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessNVD-CWE-Other
CISA KEVNo
Affected3 vendor(s)
PublishedJul 6, 2015
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-2722 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.