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Vulnerability details: VCID-kq9k-xvkp-cyg8
Vulnerability ID VCID-kq9k-xvkp-cyg8
Aliases CVE-2015-4492
Summary Security researcher Looben Yang discovered a use-after-free vulnerability when recursively calling .open() on an XMLHttpRequest in a SharedWorker.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
epss 0.02997 https://api.first.org/data/v1/epss?cve=CVE-2015-4492
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2015-92
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-4492.json
https://api.first.org/data/v1/epss?cve=CVE-2015-4492
1252295 https://bugzilla.redhat.com/show_bug.cgi?id=1252295
CVE-2015-4492 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4492
mfsa2015-92 https://www.mozilla.org/en-US/security/advisories/mfsa2015-92
RHSA-2015:1586 https://access.redhat.com/errata/RHSA-2015:1586
USN-2702-1 https://usn.ubuntu.com/2702-1/
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.86044
EPSS Score 0.02997
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:10:53.093999+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2015/mfsa2015-92.md 37.0.0